Upper right quadrant ache around to backn fullness comes and goes. sometimes no pain forweeks. lots of burping and bubbles. abdom ultrasound negative?

Get a HIDA scan: Your brief description of symptoms are quite typical for gallbladder disease. This is common even in the case of a normal sonogram. I usually order a hida scan with cck to check its function. (google hida w/ cck). There are occasional patients with all normal tests but they still have gb disease and get relief with removal. See a general surgeon.