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A heart attack (myocardial infarction or MI) is a serious medical emergency in which the supply of blood to the heart is suddenly blocked, usually by a blood clot.
Our Health A-Z contains more information on Heart attack.
If you are worried about this condition you can try our free AI Symptom Checker here.
Pericarditis is inflammation (swelling) of the pericardium, which is the fluid-filled sac surrounding your heart.
Our Health A-Z contains more information on Pericarditis.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.