I have chronic gastritis for about 20 years, I went inactive to almost symptom free for over a decade. I would get small flare ups during that time that healed up quickly. after a long bout for 6 years previously. now I have been sick almost 2 years with ever changing symptom. I get pain only left side upper / middle belly. constant burping and inward hiccups from the moment I wake up until I go to bed. I have nausea and lack of appetite. I lost around 20lbs and I'm underweight. I had no success with different diets and prilosec. I'm not sure what else I can do.