My husband has: shortness of breath, wheezing, severe chest pain, and gets extremely tired from it. So far this has happened twice and each time the hospital couldn t find what happened. All the say is it s not blood clots, not heart attack, and not a stroke. Than what is it. This last time it happened was two weeks ago and it was worse than before. My husband medical history: 31, black, 5 8 currently weighs 288lbs, recently lost 100 lbs. Had surgery for appendix to be removed in 2005. Smokes weed regularly and has since a young age. One week before he s most recent hospitalization he had a coughing fit and started having a seizure that lasted for two minutes. Second time in his whole life. Although, doctors say that has nothing to do with whatever is happening. He had childhood asthma which they also say it wasn t a asthma attack.