I have mild gastritis. i can pretty much eat anything and not feel pain but i do have a lot of burping. is this normal?

Yes it can be due to: Yes you can have burping from gastritis but there are other causes as well.If it persists check with your doc or a gastroenterologist.Other causes are gastroparesis gall bladder disease peptic ulcer and h pylori infection gastro esophageal reflux swallowing large quantity of air hiatus hernia.

Yes: Burping or "eructation" is a common symptom of gastritis.