I have had every stomach test in the years as have a horrible stomach some due to a past eating disorder. I have though recovered still major stomach problems. I agree about looking at meds. Also have you had gi tests like colonoscpy,endo,ct scan? It may not be celiec or could be but there are other issues like allergies as you know so even looking at things like that in your diet.I'm glad you found a good doc to help you as aside from nerve issues I know how stomach issues can be. I also know stress and that is very important to control in stomach issues. Of course its easier said then done but learning coping mechanisms to get through it in a calm way. I'm in therapy and was before this and was for 12 years on and off. A lot comes from with in but the guidence and support can help. I encourage journaling too it can help see connections with even stomach issues but also daily stress. Take care