I agree with the others who've posted a message, that a colonoscopy is the "gold standard". I know the prep is miserable, but when the procedure is completely done, you'll probably be thankful that you have an accurate diagnosis.
You might want to try the larger volume prep (like GoLytely), as it's definitely much more gentle on the system. The huge volume is awful, however, there is much less nausea and cramping.
Since the radiologist mentioned something about your small intestine, I'd ask lots of questions before considering having a capsule endoscopy. If your small intestine is quite narrowed, I've heard that the capsule can get stuck and cause a blockage.
While you're going through this waiting period, I'd stick to a "low residue" diet---chicken, white rice, noodles etc. In other words, stay away from raw veggies, raw fruits, and don't eat things that have a lot of fiber.
Good luck to you, and I hope your pain subsides soon.
54 year old female;
Have had Crohn's of terminal ileum for over 9 yrs, but finally accepted diagnosis when it was confirmed Feb. 2008.
Allergic/hypersensitivity to Pentasa, Entocort, and 6-MP. Recently started Humira in December.