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.
Celiac Disease Symptoms – Courtesy of Gluten Dude
Guides to Why & What to Do - Discuss with You Doctor
Interview with Alessio Fasano Part I: Should Anyone Eat Gluten?
Interview with Alessio Fasano Part II: How to Get Tested for Celiac Disease
Interview with Alessio Fasano Part III: Gluten Sensitivity
What is a Food Allergy, Anyway?
Follow Your Gut (Part 1): What's Eating My Daughter's Stomach?
Follow Your Gut (Part 2): Going Through a Celiac Biopsy
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!