I have had right sided pain for almost 3 years. I have had ultrasound, upper endoscopy, upper gi, sigmoidoscopy, stool samples, tons of blood work and the only thing to be found on endoscopy was gastritis and duodenitis. I was put on protonix about 8 months ago. After a couple weeks the pain subsided. I continued with the protonix and then it came back. It comes and goes. Sometimes subsiding at night. I found a trigger of it...stress. Sometimes when I'm not thinking about it like at work, or when I'm having a glass of wine...it seems to subside...what is this???