Talk to Gastroenterologist on Stomach Pain

I'm 22 year old . In past 3 years ago i had. h. plori infection. later on I'm recovered. and from till to yet my stomch is not working well. and from past 3 months my potty is so soft coming with pain.i visited many doctors but I'm not recovered. mouth taste change. it looks like stomach is always fill. in past 3 months i have used foxamin .. leoparad .. nexum.. cip coros ets.. but I'm not recovered