If you mean warning signs of a potentially serious heart problem, these are 7 important ones:
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Chest pressure, squeezing, or pain — especially if it lasts more than a few minutes or comes and goes.
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Shortness of breath — particularly at rest or with very little activity.
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Pain spreading to the arm, shoulder, back, neck, jaw, or upper abdomen.
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Sudden sweating, nausea, or vomiting — especially together with chest discomfort.
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Fainting, near-fainting, or severe dizziness.
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A racing, pounding, or irregular heartbeat accompanied by weakness, chest pain, dizziness, or breathlessness.
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New or rapidly worsening swelling of the legs/ankles, or breathlessness when lying down — which can indicate heart failure.
🚨 When to get emergency help
If you have new chest pressure/pain, severe difficulty breathing, fainting, or symptoms suggesting a heart attack, seek emergency medical care immediately rather than waiting for the symptoms to pass.
Not everyone has the classic symptoms—women, older adults, and people with diabetes can sometimes have less typical symptoms such as unusual fatigue, nausea, or shortness of breath.
