What Causes Pancreatitis Along With Elevated Liver Enzymes?

I m 25 and about 20 lbs overweight. I have had two bouts of acute pancreatitis within 2 months of one another. My liver enzymes were also high. I do not drink, don t take any medications, and I had no gallstones. I spent three days in the hospital and my doctor still couldn t figure out what had caused it. Any opinions?