Gastric problem. Doctors i consult.

I have gastric problem from last 1 month... when ever i eat something ..i felt something stuck in my throat...all the times burp comes out...I feel like suffocation.. when ever i tried to sleep its feels something creates in my throat..like a large volume of gas..so I can't sleep all night...I am taking pantoprazole and carmozyme.. but I can't see any differences..I feel inside that my chest is heavy and sometimes I feel heat burn in my chest...my stool comes in a liquid form...m feeling very helpless...I have sinus problem from last 10 years...I want to sleep but can't sleep... because of incomplete sleep m psychologically feeling very depressed... burp and suffocation in my throat is biggest problems I faced..plzz help me.. which doctors I consult..plzz let me know.. thank you..