I m 28, my heart has been feeling heavy (dull, constant, few sharp pains) for that last month and a half. I ve have two EKGs that read normal and BP has/is fine. If I stand up too quickly I feel nauseous, if I bend over, I feel nauseous. It also feels noticeably warmer in and outside my chest on the left side. Drs have said I may have over exerted myself working out, but it feels like more, something different, been taking one aleve, twice a day and it s not helping. ???