This is a great infographic of some of the major symptoms of celiac disease. The graphic is put together by The Gluten Dude, who has some interesting stuff on his site. If these symptoms ring true for you, look below the graphic for a few more articles that might help you figure this out with your doctor.
Guides to Why & What to Do - Discuss with You Doctor
There is also something called "silent celiac" which can happen in some people who are asymptomatic but who have celiac disease. I hope this helps any of you who are trying to get to the bottom of some crazy stuff!