Age 60, female; 5'4 105 lbs . Had gallbladder removed 13 yrs ago . Pror to removal for 3 years developed intolerance to certain fats. Severe reaction to any butter, not lactose intollerant.. Checked post cholecystectomy by endoscopy for " stone left;" inconclusive, bile duct enlarged. Symptoms: extreme right upper quadrant pain, fever, yellow or dark yellow/orange very oily diarrhea, frothy. Burning, sores on rectum. Muscle aches and pain, sometimes itchy rash all over body, weight loss of uo to 5 lbs within 4 hours of onset. Hospital ER; echogram of liver showed extremely enlarged spastic common bile duct; cautioned to go to ER when this happens... what causes this???