I am a 48 year old male I workout 5 times a week mostly cario but started a couple weeks ago with weights. Over the last couple weeks I have been having a problem taking a full breath. I went to the emergency room and they did a chest xray, ekg and blood work everything was fine. I do have very mild mitro valve reguritation, not medicated, and about 7 years ago I was diagnosed with mild pulmonary hypertension...After exhausrtive tests over 2 years they decided it was just me and that is the way I was built, no cause except I am a former smoker. I also notice that whn I sit and take a deep breath I feel a pop under might right ribs near the sternum area. I am taking zoloft and prilosec otc. Also have noticed my hands sweating alot and sweating around my head and neck when I sleep at night. I do have to say that since taking the zoloft, I have bee more obsessive about my health. Can yo help me figure this out? One other note sometimes when I get this breathing thing it almost feels like my lungs are burnining.