Dr. Stacey E. Rosen, MD, a Go Red For Women cardiologist, says this is one of the most common symptoms she sees (especially in women heart attack patients). “In my 25 years of practice, people on the verge of a heart attack report feeling tired and not able to do their usual activities,” she says. During a heart attack, blood flow to the heart is reduced, putting extra stress on the muscle, which could make you feel exhausted, according to WebMD.
Don’t be afraid to ask your doctor to do an electrocardiogram (EKG), which checks heart activity. “Sometimes when people present with lethargy, doctors won’t immediately order an EKG, which can detect a heart attack; but you should request one from your doctor, just to be safe,” says Annapoorna Kini, MD, of The Mount Sinai Hospital.