I have this terrible pain in my upper right side under my ribs that has been constant for two months and radiates to my upper right back. I have had my gallbladder, appendix, and most of my colon removed (toxic mega colon). I have had so many tests lately my CRP is elevated, I had a test for Chron s and UC. I have a strong family history of auto-immune problems. I have also had global edema. Yet all tests like BUN, kidney function , CBC come back normal. I also have thyroid and other g.i. issues. What could be causing this pain?