There has been a few discrepancies with my case, many tests came back negative, then I had an abnormal colonoscopy with abnormal biopsies and was officially diagnosed. Since then though I've had a what seemed to be a clear colonoscopy, yet I'm not 100% better. Bizarre! I've seen a couple of GIs since then, one is just totally undecided and said I might even have something that didn't have a name yet, the other said all the symptoms were very Crohn's like and to stick with that diagnosis, they also suggested a capsule endoscopy to get a clearer picture of my small bowel. So far steroids have been my only relief, I'm on Entocort at the moment and it's working well. It's really frustrating and disappointing I know because with all the tests that come back negative, a solution to the problems seem to get further away and that's what we'd all like. Remission!
To be honest sometimes it seems finding Crohn's inside the body is like trying to find a needle in a haystack even though all the signs point to the fact it can't possibly be anything else. It's a weird disease. I think there has been people who have posted here in that situation, who can't get firm confirmation they have the disease but whos GIs have treated them with Crohn's medications anyway.