Hello, I have this cough for over a year now, been on Prednisones 4x have been to a Pulmonologists 2x, and ENT and have cat scan of my lungs, twice now and also a cat scan of my nasal and everything is clear. I have a broken rib( not cracked, but broken, say the xray), had nose bleeds and vomitting from coughing, I do not and never smoke and drs are passing me back and forth and they do not know what s causing the coughing