I think that I may have celiacs. What now?

I ended up in the hospital after eating a whole wheat pizza crust. Prior to this, my doctor was testing me for ulcers, h-pylori, and finally sent me to a GI doctor. He found that I had a build up of allergen cells in my esophagus, and a yeast infection. My regular physician then tested my blood and found the same cells in my blood that were in my esophagus. She then referred me to an allergist whom I have yet to see. Meanwhile, my finger itches SO BADLY! It itches so bad, I just want to cut it off, then after I scratch it like a crazy person, it oozes clear junk everywhere. Then, the blisters turn into lacerations and hurt and burn. My finger looks deformed and the problem is spreading over my whole finger now. On top of all of this, my knees hurt along with my hips. I asked my doctor about it but she just told me to take vitamins and that my bones were depleted from nursing 3 babies over the last 4 years. I am frustrated. My mom and my aunts have auto immune diseases, so I feel that CD could be something to look into. What do I do next?