For several months i have terrible abdominal pain, and yellow, slimy liquid stool-but never feel like i am emptying completely.i have no gallbl. or app.

Need to see your MD: You may have partial block of colon , could be a benign process or possible even a lesion after sono , ct colonoscopy will come to a conclusion and treat you, please see as soon as possible with out delay.

IBD: You may have some form of intestinal disease. Mucous stools are seen in ulcerative colitis and crohn's disease, both forms of inflammatory bowel disease. These are autoimmune conditions. You need to seek investigation from a gastroenterologist. Good luck

Dumping syndrome: Absolutely i agree ibd is highest prob!. Also think of dumping syndrome. If it was soon after your gb was removed & tends to occur after eating, this is called dumping. Ur body still releases the enzymes that nrmly are controlled by the gb & wo it they just "go." yes! u need to see ur dr! few possible: (bacteria/ worms) or hormone (hyperthyroid, addison's), or autoimm(celiac). Best luck!