Don't smoke no alcohol no ongoing medication can't take satisfying deep breath. I can't take a deep satisfying breath. Only once in a while I am able to take a deep breath and that satisfaction only lasts for a while and after that I again want to take a deep satisfying breath. Also I need to crack my back repeatedly (like constantly stretching it). I need to adjust my chest again and again (cracking ribs.) can not sit for too long. Although I have no problem in lifting anything heavy. I feel good when I lay down or sleep. I have done following test and seen multiple doctor. Hrct of chest - normal usg whole abdomen - normal vit b12 - normal vit d3 - normal cbc - normal thyroid - normal blood sugar - normal what should I do next? Do I need back xray?