Burping/gas after eating or drinking anything, a sip of water will make me burp. any movement like sitting up or standing up. gastritis or h pylori?

Ck with your doctor: Your history of belching, burping, gastritis, use of pepto-bismol all points to some form of gastrointestinal imbalance. You may need to have a food allergy panel done, as certain foods that you might be allergic to may be causing you to have excess burping, belching, gas, bloating, even constipation, or diarrhea. So, the best thing to do is to see your doctor. He can do a simple test to check for h. Pylori.