i get a pain in my left hand every time i take a deep breath and exhale, have had this about eight months.... dull pain in my chest for about 5. went to doctor, had blood tests, he said nothing to worry about , probably just stress. have had cough and wheezing for about month, went back to doc, he prescribed antibiotics and sent me for chest x ray which came back normal. still dont know what the left hand pain is, just at back of hand, doesn't affect arm or shoulder. I am a 35 yr old male non smoker, not overweight, and generally fit and healthy