7 warning signs that can indicate a serious heart problem
Some heart conditions cause obvious symptoms, while others can be subtle. These signs don’t prove that your heart is in danger, but they deserve attention—especially if they’re new, severe, or worsening.
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Chest pressure, squeezing, or pain — particularly in the center or left side of the chest.
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Shortness of breath — during activity or at rest, especially if it is new.
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Pain or discomfort spreading elsewhere — such as the arm, shoulder, back, neck, jaw, or upper abdomen.
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Unexplained sweating, nausea, or vomiting — particularly when occurring with chest discomfort or breathlessness.
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Fainting or near-fainting — especially during exertion or together with palpitations.
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Persistent or worsening palpitations — a racing, pounding, or irregular heartbeat accompanied by dizziness, chest discomfort, or breathlessness is more concerning.
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New swelling or rapid weight gain — particularly swelling of both legs or ankles, which can occur with fluid retention from heart failure.
🚨 When it’s an emergency
Call your local emergency service immediately for severe or persistent chest pressure/pain, severe shortness of breath, fainting, or symptoms suggestive of a heart attack. Don’t wait for symptoms to resolve and don’t drive yourself to the hospital.
Heart attacks don’t always cause dramatic chest pain. Older adults, women, and people with diabetes can sometimes have less typical symptoms such as unusual fatigue, breathlessness, nausea, or weakness.
If you’re experiencing symptoms right now, tell me what you’re feeling and when it started—but don’t delay emergency care while waiting for a response.
