Tender abdomen with distention. bile regurgitation, spontaneous nausea, burping, full quickly for 5m x-ray shows nothing abnormal to er dr? thoughts?

Stomach/Gallbladder: If your symptoms are after eating food mainly ( fatty, cheesy or greasy); you may have gall stones. Abdominal ultra sound would be helpful. Blood test to check for h. Pylori gastritis and celiac disease may be the next step. Meanwhile you can try eating gluten free food while avoiding fatty foods. Also try Pepcid (famotidine) like drug. Ovarian cyst is a remote possibility. Assuming you are not pregnant.