I get a sinking, tightening feeling in chest, no pain anywhere, some nausea, dizziness and near black-out. In one case did black-out. ER showed normal EKG, normal blood pressure, normal pulse. Blood tests negative.
Age 61, no real medical history. I live with a kidney stone, I cough at night, have mild acid reflux. Height six feet, weight 180 lbs. I exercise regularly, can bike 25 - 30 miles and no problem, advanced weight-lifter.