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| Meta Title | Warning Signs of a Heart Attack |
| Meta Description | Early warning signs of a heart attack include fleeting episodes of chest pain and fatigue that occur hours or days beforehand. |
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| Boilerpipe Text | Your body may be trying to warn you that a
heart attack
is coming. But are you listening? And do you know what to listen for?
Although some people have no early warning signs, others do. And knowing about them can be lifesaving.
We spoke with cardiologist
Jacqueline Tamis-Holland, MD
, to learn what you might notice before a heart attack happens and when to seek medical care.
Early signs before a heart attack
Early warning signs of a heart attack can start hours, days or even weeks beforehand. Theyâre often subtle, so they might easily fly under the radar.
Dr. Tamis-Holland explains that some heart attacks occur after a period of âwaxing and waningâ symptoms. The symptoms come and go, and donât last long enough to raise alarm bells. And because these sensations are fleeting, it might be easy to brush them off or assume theyâre from something else, like
indigestion
.Â
The most common early signs of a heart attack are:
Chest pain or discomfort that comes and goes
Unusual fatigue
Shortness of breath with usual activities
Episodes of nausea
The sense that you just donât feel right
These may occur together or on their own. Letâs take a closer look.
Image content:
This image is available to view online.
View image online
(https://assets.clevelandclinic.org/transform/7120983d-4dea-4213-bf74-2082dce79cab/early-signs-heart-attack-infographic)
Chest pain or discomfort that comes and goes
âSome people have chest discomfort that goes away and then comes back,â Dr. Tamis-Holland explains. âThe feeling might last five minutes or 10 minutes. But because itâs not intense or severe, and it goes away, they donât call their provider.â
You might not have
pain
exactly, but something more like:
A little pressure
Squeezing
Fullness
Heaviness
Burning
Such discomfort in your chest or upper body is a classic
symptom
of a heart attack as itâs happening. But itâs also a key early warning sign. It can mean that plaque in your coronary arteries is limiting blood flow to your heart, but not completely blocking the flow, so itâs only transient or short-lived.
The âwaxing and waningâ nature of this early clue affects each person a little differently. You might have one episode and then it doesnât happen again until days later, when you have a heart attack. Or you might have isolated episodes lasting several minutes over the course of weeks.
Unusual fatigue
This means youâre
extremely
tired to the point where itâs not typical for you. And you canât identify a clear reason.
Maybe you normally zip up and down the stairs, no problem. But today, youâre wiped out after one slow flight. Or perhaps you canât muster the energy to go outside to water the flowers, which you normally do without breaking a sweat. Itâs that sort of thing.
âSome people just feel really tired in the weeks before,â Dr. Tamis-Holland says. âWhile this is less often a warning sign, some patients have described this sensation in the days prior to their event. They donât have as much energy as they usually do.â
If you have this type of
fatigue
, itâs worth taking note. It might mean that your heart is having trouble sending enough blood to all the parts of your body that need it.
Shortness of breath with usual activities
You may experience shortness of breath thatâs not typical for you. This can occur at rest or when youâre not moving around much. You might even feel like you canât lie down because youâre so short of breath.
Episodes of nausea
Brief episodes of nausea can sometimes indicate poor blood flow to your heart muscle. If these recur, itâs best to discuss what youâre feeling with a healthcare provider.
Just not feeling well
A general sense of unwellness â where you donât feel 100% but canât quite describe why â can be an early warning sign of a heart attack. Aside from feeling physically unwell, you may also have a sense of impending doom, like something bad is going to happen.
âThere are some people who have said after the fact, âI just didnât feel well, but I canât really explain it,ââ shares Dr. Tamis-Holland. This sense might linger for days leading up to a heart attack.
This doesnât mean that you should rush to the ER if you feel off your game. But it
does
mean thereâs value in checking in with your body and trusting your gut. âWhen in doubt, err on the safe side and seek medical attention,â she advises.
Take warning signs seriously
âIf you have any of these signs and are concerned, call your physician or healthcare provider,â urges Dr. Tamis-Holland. âBut if you think you might be having a heart attack, call 911. Itâs important to
act fast
.â
A heart attack can cause permanent damage to your heart muscle. But if warning signs appear, you have a chance to get help
before
such damage occurs. This lets providers treat the underlying causes (like
coronary artery blockages
) sooner and gets you on the road to recovery faster.
Listening to our bodies isnât always easy â especially in a world that keeps getting noisier. But learning to separate red flags from background static can help you know when to seek care. And that can make all the difference in protecting yourself and those you love. |
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January 8, 2026/[Health Conditions](https://health.clevelandclinic.org/health-conditions)/[Heart Health](https://health.clevelandclinic.org/health-conditions/heart-health)
# What Are Early Warning Signs of a Heart Attack?
Recognizing subtle symptoms, like unusual fatigue or fleeting episodes of chest pain, could be key to survival
Your body may be trying to warn you that a [heart attack](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction) is coming. But are you listening? And do you know what to listen for?
Advertisement
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Although some people have no early warning signs, others do. And knowing about them can be lifesaving.
We spoke with cardiologist [Jacqueline Tamis-Holland, MD](https://providers.clevelandclinic.org/provider/jacqueline-tamis-holland/4268349), to learn what you might notice before a heart attack happens and when to seek medical care.
## Early signs before a heart attack
Early warning signs of a heart attack can start hours, days or even weeks beforehand. Theyâre often subtle, so they might easily fly under the radar.
Dr. Tamis-Holland explains that some heart attacks occur after a period of âwaxing and waningâ symptoms. The symptoms come and go, and donât last long enough to raise alarm bells. And because these sensations are fleeting, it might be easy to brush them off or assume theyâre from something else, like [indigestion](https://health.clevelandclinic.org/is-that-pain-in-your-chest-heartburn-or-a-heart-attack).
The most common early signs of a heart attack are:
- Chest pain or discomfort that comes and goes
- Unusual fatigue
- Shortness of breath with usual activities
- Episodes of nausea
- The sense that you just donât feel right
These may occur together or on their own. Letâs take a closer look.

**Image content:** This image is available to view online.
View image online (https://assets.clevelandclinic.org/transform/7120983d-4dea-4213-bf74-2082dce79cab/early-signs-heart-attack-infographic)
### Chest pain or discomfort that comes and goes
âSome people have chest discomfort that goes away and then comes back,â Dr. Tamis-Holland explains. âThe feeling might last five minutes or 10 minutes. But because itâs not intense or severe, and it goes away, they donât call their provider.â
Advertisement
You might not have [pain](https://my.clevelandclinic.org/health/symptoms/21209-chest-pain) exactly, but something more like:
- A little pressure
- Squeezing
- Fullness
- Heaviness
- Burning
Such discomfort in your chest or upper body is a classic [symptom](https://health.clevelandclinic.org/what-does-a-heart-attack-really-feel-like) of a heart attack as itâs happening. But itâs also a key early warning sign. It can mean that plaque in your coronary arteries is limiting blood flow to your heart, but not completely blocking the flow, so itâs only transient or short-lived.
The âwaxing and waningâ nature of this early clue affects each person a little differently. You might have one episode and then it doesnât happen again until days later, when you have a heart attack. Or you might have isolated episodes lasting several minutes over the course of weeks.
### Unusual fatigue
This means youâre *extremely* tired to the point where itâs not typical for you. And you canât identify a clear reason.
Maybe you normally zip up and down the stairs, no problem. But today, youâre wiped out after one slow flight. Or perhaps you canât muster the energy to go outside to water the flowers, which you normally do without breaking a sweat. Itâs that sort of thing.
âSome people just feel really tired in the weeks before,â Dr. Tamis-Holland says. âWhile this is less often a warning sign, some patients have described this sensation in the days prior to their event. They donât have as much energy as they usually do.â
If you have this type of [fatigue](https://my.clevelandclinic.org/health/symptoms/21206-fatigue), itâs worth taking note. It might mean that your heart is having trouble sending enough blood to all the parts of your body that need it.
### Shortness of breath with usual activities
You may experience shortness of breath thatâs not typical for you. This can occur at rest or when youâre not moving around much. You might even feel like you canât lie down because youâre so short of breath.
### Episodes of nausea
Brief episodes of nausea can sometimes indicate poor blood flow to your heart muscle. If these recur, itâs best to discuss what youâre feeling with a healthcare provider.
### Just not feeling well
A general sense of unwellness â where you donât feel 100% but canât quite describe why â can be an early warning sign of a heart attack. Aside from feeling physically unwell, you may also have a sense of impending doom, like something bad is going to happen.
âThere are some people who have said after the fact, âI just didnât feel well, but I canât really explain it,ââ shares Dr. Tamis-Holland. This sense might linger for days leading up to a heart attack.
This doesnât mean that you should rush to the ER if you feel off your game. But it *does* mean thereâs value in checking in with your body and trusting your gut. âWhen in doubt, err on the safe side and seek medical attention,â she advises.
Advertisement
## Take warning signs seriously
âIf you have any of these signs and are concerned, call your physician or healthcare provider,â urges Dr. Tamis-Holland. âBut if you think you might be having a heart attack, call 911. Itâs important to [act fast](https://health.clevelandclinic.org/your-heart-attack-to-do-list-infographic).â
A heart attack can cause permanent damage to your heart muscle. But if warning signs appear, you have a chance to get help *before* such damage occurs. This lets providers treat the underlying causes (like [coronary artery blockages](https://my.clevelandclinic.org/health/diseases/16898-coronary-artery-disease)) sooner and gets you on the road to recovery faster.
Listening to our bodies isnât always easy â especially in a world that keeps getting noisier. But learning to separate red flags from background static can help you know when to seek care. And that can make all the difference in protecting yourself and those you love.
Advertisement
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Health Library
Heart Attack (Myocardial Infarction)
[What Is a Heart Attack?](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#what-is-a-heart-attack)
[Symptoms and Causes](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#symptoms-and-causes)
[Diagnosis and Tests](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#diagnosis-and-tests)
[Management and Treatment](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#management-and-treatment)
[Outlook / Prognosis](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#outlook-prognosis)
Health Library
Heart Attack (Myocardial Infarction)
[What Is a Heart Attack?](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#what-is-a-heart-attack)
[Symptoms and Causes](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#symptoms-and-causes)
[Diagnosis and Tests](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#diagnosis-and-tests)
[Management and Treatment](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#management-and-treatment)
[Outlook / Prognosis](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction#outlook-prognosis)
Advertisement
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| Readable Markdown | Your body may be trying to warn you that a [heart attack](https://my.clevelandclinic.org/health/diseases/16818-heart-attack-myocardial-infarction) is coming. But are you listening? And do you know what to listen for?
Although some people have no early warning signs, others do. And knowing about them can be lifesaving.
We spoke with cardiologist [Jacqueline Tamis-Holland, MD](https://providers.clevelandclinic.org/provider/jacqueline-tamis-holland/4268349), to learn what you might notice before a heart attack happens and when to seek medical care.
## Early signs before a heart attack
Early warning signs of a heart attack can start hours, days or even weeks beforehand. Theyâre often subtle, so they might easily fly under the radar.
Dr. Tamis-Holland explains that some heart attacks occur after a period of âwaxing and waningâ symptoms. The symptoms come and go, and donât last long enough to raise alarm bells. And because these sensations are fleeting, it might be easy to brush them off or assume theyâre from something else, like [indigestion](https://health.clevelandclinic.org/is-that-pain-in-your-chest-heartburn-or-a-heart-attack).
The most common early signs of a heart attack are:
- Chest pain or discomfort that comes and goes
- Unusual fatigue
- Shortness of breath with usual activities
- Episodes of nausea
- The sense that you just donât feel right
These may occur together or on their own. Letâs take a closer look.

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### Chest pain or discomfort that comes and goes
âSome people have chest discomfort that goes away and then comes back,â Dr. Tamis-Holland explains. âThe feeling might last five minutes or 10 minutes. But because itâs not intense or severe, and it goes away, they donât call their provider.â
You might not have [pain](https://my.clevelandclinic.org/health/symptoms/21209-chest-pain) exactly, but something more like:
- A little pressure
- Squeezing
- Fullness
- Heaviness
- Burning
Such discomfort in your chest or upper body is a classic [symptom](https://health.clevelandclinic.org/what-does-a-heart-attack-really-feel-like) of a heart attack as itâs happening. But itâs also a key early warning sign. It can mean that plaque in your coronary arteries is limiting blood flow to your heart, but not completely blocking the flow, so itâs only transient or short-lived.
The âwaxing and waningâ nature of this early clue affects each person a little differently. You might have one episode and then it doesnât happen again until days later, when you have a heart attack. Or you might have isolated episodes lasting several minutes over the course of weeks.
### Unusual fatigue
This means youâre *extremely* tired to the point where itâs not typical for you. And you canât identify a clear reason.
Maybe you normally zip up and down the stairs, no problem. But today, youâre wiped out after one slow flight. Or perhaps you canât muster the energy to go outside to water the flowers, which you normally do without breaking a sweat. Itâs that sort of thing.
âSome people just feel really tired in the weeks before,â Dr. Tamis-Holland says. âWhile this is less often a warning sign, some patients have described this sensation in the days prior to their event. They donât have as much energy as they usually do.â
If you have this type of [fatigue](https://my.clevelandclinic.org/health/symptoms/21206-fatigue), itâs worth taking note. It might mean that your heart is having trouble sending enough blood to all the parts of your body that need it.
### Shortness of breath with usual activities
You may experience shortness of breath thatâs not typical for you. This can occur at rest or when youâre not moving around much. You might even feel like you canât lie down because youâre so short of breath.
### Episodes of nausea
Brief episodes of nausea can sometimes indicate poor blood flow to your heart muscle. If these recur, itâs best to discuss what youâre feeling with a healthcare provider.
### Just not feeling well
A general sense of unwellness â where you donât feel 100% but canât quite describe why â can be an early warning sign of a heart attack. Aside from feeling physically unwell, you may also have a sense of impending doom, like something bad is going to happen.
âThere are some people who have said after the fact, âI just didnât feel well, but I canât really explain it,ââ shares Dr. Tamis-Holland. This sense might linger for days leading up to a heart attack.
This doesnât mean that you should rush to the ER if you feel off your game. But it *does* mean thereâs value in checking in with your body and trusting your gut. âWhen in doubt, err on the safe side and seek medical attention,â she advises.
## Take warning signs seriously
âIf you have any of these signs and are concerned, call your physician or healthcare provider,â urges Dr. Tamis-Holland. âBut if you think you might be having a heart attack, call 911. Itâs important to [act fast](https://health.clevelandclinic.org/your-heart-attack-to-do-list-infographic).â
A heart attack can cause permanent damage to your heart muscle. But if warning signs appear, you have a chance to get help *before* such damage occurs. This lets providers treat the underlying causes (like [coronary artery blockages](https://my.clevelandclinic.org/health/diseases/16898-coronary-artery-disease)) sooner and gets you on the road to recovery faster.
Listening to our bodies isnât always easy â especially in a world that keeps getting noisier. But learning to separate red flags from background static can help you know when to seek care. And that can make all the difference in protecting yourself and those you love. |
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