You seem to be suffering from post cholecystectomy
syndrome ( PCS ).
Postcholecystectomy syndrome (PCS) describes the presence of abdominal symptoms after surgical removal of the gallbladder
(Cholecystectomy),like persistent pain abdomen,nausea,vomiting,bloating,diarrhea
PCS may occur in about 5 to 40 percent of patients who undergo cholecystectomy.
Approximately 50% of cases are due to biliary causes such as remaining stone in either remnant of cystic duct or common bile duct,biliary leakage etc.
The remaining 50% are due to non-biliary causes like inflammatory strictures
around sphincter of oddi or around common bile duct.
You must consult your surgeon and get ultrasound
and CT abdomen done to find the exact cause.