question: For the past 4 months Ive been having excruciating sharp constricting pain in my right upper abdomen/costal angle & the corresponding area in my back. The pain is shooting & refers to my right shoulder/neck/ shoulder blade. The pain is worse with deep breathe & I have to breath shallow. My X-ray & ultrasound came up clean on everything but my right kidney was discovered to be dead/ non functioning. (left kidney only functioning at %50). No high bp/no diabetes).Docs suspect pain is pleural rubbing but not certain. Thoughts ?