Desperate for answers...Celiac?

I have had various digestive issues for about ten years. Weight fluctuations, diarrhea, bloody stools, fatigue, terrible gas, abdominal distention, ravenous appetite (I'm 5'8" and barely 125lbs) etc. I was diagnosed with IBS and given several medicines. I got very little relief, but my doctor insisted that I was "just making it worse from stress." Recently, my symptoms became intolerable. It seems that whatever I eat makes me look pregnant. I have bouts of diarrhea and gas that are almost unbearable. I am in college, and my symptoms have interfered with my academics/social life. I don't have the energy to care about a lot of things anymore, and I am apathetic and depressed. Also, I have also lost my period. I have had my ovaries checked. They were fine. I finally saw a GI and he ordered an endoscopy and colonoscopy. He said that everything looked pretty normal, but he took a biopsy of my small intestine to check for damage and drew blood. Do my symptoms sound like they could be related to Celiac? At this point, I am desperate for answers. I would never wish Celiac on myself, but I just want something that concrete. I want my life back.