Abdominal Pain after fatty foods-Post gallbladder removal

In 2003, I had sharp pains in my chest and back after fatty meals.  An ultrasound concluded I had gallstones.  In 2004, I had my gallbladder surgery, lapo was unsuccessful.)  Painful recovery, and a nice scar.  I had frequent gurgles and mishaps.  I had 3 sessions of hydrocolontherapy and started taking fiber supplements regularly.  Problem solved.  A year later, I started having sharp pains again, and I was hospitalized.  I had an endoscope and a sphincterotomy.  My common bile duct was clogged, and slight pancreatitis.  Over the last several years, I have managed my diet, stayed away from the fats, but still suffer occasional attacks.  In January of 2009, I visited the ER once again with very bad pains.  My gastroeneteroligist  ordered an MRI, endoscope, and a colonoscopy.  All negative.  I also was prescribed a med that thinned my bile for 2 months.  I still have these attacks, usually the same night I eat a fatty dish.  It sometimes happens between 2 and 3  in the morning while I am sleeping. My questions are: What is this sharp pain caused by, am I going have this forever, and is there any serious danger?