For about a month my husband has been having episodes upon exertion, of severe headache, dizziness, chest pain.. He has a stent in his LAD.. Cardio Light stress test negative, cardiac catheterization negative.. He has been in hospital past three days.. Accidental finding 10+ yrs ago of lesions on the brain, with no symptoms.. Therefore no treatment on that.. He is no better.. Bad headache, dissiness( says he feels like he s drunk) Please help...