Where In Your Stomach Does It Hurt When You Have Been Glutened? in Post Diagnosis, Recovery & Treatment of Celiac Disease Posted April 22, 2014 · Report to Admin I have 20 years of gluten symptoms, have a history of Fibromylagia and CFS. I went to a new doctor, a nurse practitioner actually. She wasn't satisfied with just a Fibro/CFS diagnosis and decided to test me for Celiac and I tested positive on a TTG-IGA antibody test. My NP diagnosed me with Celiacs without any further testing and told me if I want to live, stop eating gluten. I decided to go for another opinion and went to see a GI. I had a negative upper endoscopy and set of negative genetic blood tests. Celiac was ruled out and non-celiac gluten sensitivity was given as my new diagnosis plus Fibromylagia. I am not 100% convinced gluten is my issue... During all this testing, the GI found I had Gastritis, inflammation in my stomach and bleeding. I was put on prescription Prilosac. This was found to be caused by years of use of non-steroid anti-inflamitories. I stoped the anti-inflams and started taking the Prilosac. My stomach felt better at first, I am also 100% gluten free now. It's been about 4 weeks and I'm not better. All of the sudden, after eating certain meals, I started having symptoms again. First it's massive upper stomach pain, like a knawing pain, like someone is stabbing my upper stomach with knives. Then I get gas, burping, then a little while later it almost stimulates my constipation and I go to the bathroom. Not diareah but I go and it's loose, normally I never go. I also get a sour taste in my mouth almost every time I eat. My struggle now is trying to figure out if this stomach pain is from me being so super sensitive to gluten cross contamination (the stomach issues seem to happen every time I eat out or get takeout) or if it's from the gastritis not yet healing. The stomach pains seem to only happen at a later in the day meal like lunch or dinner, possibly the Prilosac is wearing off by the afternoon? So confused and just want to figure this out. I called my GI and he added a second dose of the Prilosac to my daily regimen. I have taken it the last three days. The first day I took the second dose, I still had the stomach issues. Yesterday and today, I had no reaction. Yesterday I ate out at a restaurant and today I got gluten free pizza take out. I was fine. I guess if I can have a week of consecutive non-reactions, I can test my stomach with gluten and then I would know. I am looking for any opinions about this and also, if you have Celiac or non-Celiac GS, when you get stomach pain, is it in your lower stomach or is it in your upper stomach? Thanks!