I've noticed a strange symptom: the last few times I have had dairy, I get joint pain. Normally I avoid dairy as I am lactose-intolerant, but have the occasional slip-up. I noticed when I had dessert with some ice-cream the other day, my knees were very sore. And then last night, I had to have a pill to induce bowel movements for my colonoscopy and it was 33mg of lactose. I had knee pain as well, then. I've never had these symptoms before. Usually it is gas, diarrhea, etc. I'm pretty sure joint pain is tied to inflammation though... after contracting measles, I started having blood in my stool - and everytime I would have blood, I would get a fever and joint pain. This has been on/off for the last 3 years but it is getting better. My gut has been incredibly strange over the last year, though. I find things are just "sitting" in there, causing constipation even when it's something like dairy - which is supposed to pass right through my system! My colonoscopy is this morning to figure out at least part of the puzzle, so here is crossing my fingers!