I had a similar experience as Heidi except I went from zero pain to 10+ over a few days. I had gone for a check up with my PCP and he was puzzled because my liver enzymes were through the roof which indicated gall bladder trouble and I did not have one. He asked me if I was in pain and I was not. He scheduled an ultra sound for the following Monday. Sunday I woke up in excrutiating pain and mid-day went to the hospital I knew my bariatric surgeon had privileges at so he could be called. I also had a stone in my bile duct which was causing pancratitis. My bariatric surgeon and a gastro surgeon performed surgery to remove the stone(s) and created a larger duct. I was in the hospital for almost a week.