Welcome Autumn. Here is where you'll find the information you need. Unfortunately, doctors don't seem to have nearly as much as the peeps here do... who live w/ celiac every day... and have the one million different symptoms!!
My 3 daughters and I all have celiac. I was diagnosed first at age 49. When my youngest was diagnosed, she was so ill she lost 60 lbs., had interstitial cystitis symptoms and it was ONLY though her own extensive elimination diet that she finally was able to heal her gut. Interesting note... she spent her first 5 years on antibiotics for chronic ear infections and, from what I've read, this likely seriously compromised her gut health.
She went to GI docs who berated her for asking more questions than they could answer. She'd leave in tears. Seriously... it was her own research here and in other places that helped her survive. She ate FIVE foods for nearly 2 years... eggs, plain chicken (no spices whatsoever), apples, white rice, and cauliflower. Can you imagine?? Thankfully, those foods are good for you! Several years later, she's been able to bring back many foods, but will always be dairy free, citrus free, some nightshade veggies free, and several other frees (I think).
I hope you find some answers! Just know that the peeps here are amazingly knowledgeable and so helpful!!