NYCman

I get a "fullness" feeling, not constipation fullness, but more like a water fullness. It's something I notice when I drink, instead of when I eat. Maybe I've become really conscious of what I ingest. It feels like water or gas stuck in my mid-back or upper-upper lower back (It's hard to pinpoint, but I can't really call it my lower back, yet it goes a little bit down further than my mid-back.). It's not the typical burning gas that is brought about by acid reflux, so I wouln't know if it is Acid reflux, or not. This fullness feeling is occuring in my back. It's not really severe pain, its just become more of an annoyance. It sometimes feel like something is there, but all scans show nothing. . It's lower than where my gallbladder would be. And I really notice like the feeling in my back as opposed to my front. Other than MRI, I've had almost every other test. Any ideas or clues? Thanks.

P.S.- I always tend to burp ALOT. These are not the reflux sour burps (I get those occasionally.). Instead these burps can happen whether I have food or not, and I feel the burps in the mid-upper lower arch of my right side back.