I've just recently been diagnosed with having Barrett's Esophagus. When I try to sleep on my right side, bile will back up into my throat. I can only sleep on my left side. I have pain on my right side just under my rib cage. Gallbladder was removed 1996, Appendix was removed 1995. I'm nauseated quite often. Almost everything I eat burns my throat going down and I'm having to swallow alot, as well as coughing all the time, even when I don't have a cold. Acid reflux medication no longer helps. What could it be?