Shortness of Breath
Sure, you could be out of breath from not exercising enough. Or it could be a sign of a heart attack. If you find yourself pausing to catch your breath even after minimal effort, such as walking up the steps of your house, you need to pay attention to what happens next. If the seriousness of symptoms was to be ranked, shortness of breath would follow chest pain—and since chest pain does not always happen, this is the one you need to be the most wary of.
Those who have experienced heart attacks will say that they felt incredibly winded, as if they had participated in a marathon.
