Gastritis issue. Please do let me know!

I have been facing face heart burn, bloating issue from last 2 years. 1.5 years ago i went for endoscopy n colonoscopy in which it was found that i had h pylori infection, haital hernia. But the issue of bloating did not get solved after treatment also. I get bloating started after lunch. My stomach do not get empty in morning which causes discormfort. Did not find any food to which i am allergic, no pain felt no weight loss. Only problem is gas n heart burn did not experience weight loss also. Low b12 most of the times. I have tried ayurvedic treatment also but of no use and allopathic also did not solved the issue in first place and recently i have started ayurvedic treatment which has not shown much of effects. I fear that it should not be some big disease please give suggestion on this n if u need anymore information please do let me know