Do you think any of it is psychological? Since you were worried about going on it, maybe you've induced a reaction? The mesalamine treatments are supposed to be on the milder side. I'm not suggesting it's in your head by any means, so please don't take that the wrong way.
You know, if I had my druthers, I'd try an inflammation-free diet, cut out wheat gluten, almost all fiber, alcohol, most sugar, and try to fight this disease naturally myself. But the long-term risks of unencumbered inflammation are too great to go med-free I guess. If I could get a GI to agree to a colonoscopy every year I'd probably do it, but they won't - they want to keep you on the drugs. It's the safe route for them. Now I'm on Remicade myself and am not exactly thrilled about it. But not having the expertise and wherewithal to take on treating myself, you're stuck with option B - trust the doctors. A sad sad state.