I was diagnosed about 3 weeks ago with Gastritis after a trip to the hospital with a burning/full feeling a couple inches above my belly button. They did blood work which came back fine and the doctor put me on Protonix for 10 days. After the medicine was gone I felt pretty much normal and have been able to eat pretty much everything... including pizza. But today I decided to try a few sips of Mtn.Dew which I gave up since, and I ate things today I have been no problem. But a little while later I started feeling like a burning sensation and little nausea again. Could it be me trying Mtn.Dew?