Had endoscopy 6 weeks ago, all came back benign but stated i did have gastritis. but i didnt think to ask what caused this. better but still have some nausea stomach pain, i looked up what causes nothing applies to me . could gallbladder caused this?

When I had patients with similar upper endoscopy reports, I always felt that some minor irritation was noted rather than a rip roaring gastritis. However you seem to have somewhat typical symptoms. I assume that you've been put on a diet and medication. Also avoid spicy,oily foods, caffeine, alcohol, aspirin,& meds like ibuprofen and naproxen. Be sure to follow up with the gastroenterologist.