Hey, you know that the bowel (small and large) is all over your abdomen. It is not possible on a web forum to tell you what is causing your pain. "Left side" is a pretty general term.
Now if you said you had pain on your left side, under your ribs, burning - I would say it sounds like heart burn or gastritis.
If you said you had pain on your left side, under your hip bone, in back, I would say it sounds like your kidney. In front? Sigmoid colon, ovary, descending colon, pick one.
If you said you had pain on your left side, really generalized, not tender to the touch, I would say I don't know.
You can see pictures of the bowel on the internet, or in your doctor's office, and maybe looking it over would help you when you discuss your pain with your DR.
Please remember that a colonoscopy only sees the colon, and just a bit of the small bowel (terminal ileum). There is 20 feet of small bowel that is NOT visualized by the scope.
Entocort is only effective in the terminal ileum (and maybe nearby areas of the colon). If you have inflammation anywhere else, you will need another kind of treatment.
49 yrs old, IBD diagnosis in spring '01. Proctitis, gastritis, ileitis.
Pentasa (3g/day)Colazal (9 pills/day), Sulfazine (1.5 g/day), Prevacid, folic acid, vit. D (2K iu), flax seed oil (2 tsp/day), mesalamine enema as needed. Gluten free as of 5/30/11.