Hi there, I'm 16 and lately I've been experiencing extreme fatigue (sleeping 12-15 hours a day) abdominal pain after eating or sometimes just randomly and I could also feel a large marble sized ball on my right side below my rib cage. Also, just a few months ago I had pancreatitis and the cause for it was unknown. And I recently did go to the doctors office and he said it was normal and that i was fine but I'm not quite convinced that what he said is true. Please help.