I have a pain in my left side right at the hip bone. Would this be a problem with my kidney. I had stents put in to improve drainage to my bladder because of stomach tumors which blocked drainage. I ve had no problem with the stents and am about to have them replaced with the stents that can stay in a year. Not only do I suffer the pain in my side I suffer from constipation for a while, then I suffer with diarrhea and back and forth. I went through a period where I threw up some brown stuff and had to have my stomach drained.