I agree with the others. Your doctor should do more tests.
I'm actually one of those people that takes the medications without an official diagnosis. However, my doctor did run all of the tests. He did an endoscopy, colonoscopy, barium CT, and the pill cam. The tests were inconclusive BUT my symptoms point to Chron's and there was scarring in my intestines but no active disease. He was also the ONLY doctor that listened to my symptoms.
At the time I thought it was my appendix or something, and ended up in the hospital with pain. Soon after I got really sick and couldn't eat for a looong time. If I did I paid the price and basic movements like sitting, walking, and standing up was painful.
The entocort has worked for me. I do a lot better on it. If I stop taking it my stomach wreaks havoc.
I would request more tests.
By the way, entocort is $569 retail for me. Thank goodness for health insurance.