hi. noted history of gallbladder surgery and recent occurrence of abdominal pain. low fat diet is recommended in post-cholecystectomy patients, to lessen the risk of stone recurrence anywhere in the hepaticopancreaticobiliary tract area. retained vs recurrent stone must be ruled-out in your case if your symptoms are persistent/progressive. it is best to consult with a doctor, preferably a gastroenterologist or a general surgeon for physical examination and clinical evaluation. diagnostics (such as ultrasound, ERCP, liver function tests, blood count, etc.) and management (medical and/or surgical if indications are found) will be directed accordingly. hope this helps. good day!! ~dr.kaye