I might have an episode of that after being diagnosed. The pain was very bad and higher up than normal. But it was very short lived. My doctor used and endoscope and didn't see anything wrong, but the pain never returned so we didn't investigate it further. Kind of wierd, but one thought was that maybe my inflamed colon was irritating my pancreas somehow. Definitely glad that pain never returned. Sorry can't be more informative, but hope it's something like mine where it just goes away.