Talk to Gastroenterologist on GERD

I have been facing from last 4 months, i always feel burning at different points under my ribs or near stomach. Feels like something stuck in throat and loosing weight almost 10 kg,lose of apetite. Nothing in test H pylorie is negative,all blood reports are fine except uric acid and b12. Chest xrays are fine got unltrasound of left side it was fine as well.Got into depression but now feeling as i am taking gaviscon advance,zantac 300, razodex(dexlamporazol), Praz and modrin. I am getting better but burning sensation in intestines doest goes away? doctor say its gerd and les is loose but i thing intestinal issue?