I'm going through the same thing I've been having these attacks for many years always thinking it was gallstones and just last week found out it was pancreatitis. Out of over a dozen blood tests only two came back with high enzyme levels. I also had an endoscopy 2 weeks ago and the dr said my stomach was normal but she scheduled another one but one that goes right to the pancreas and gallbladder and that's how they found out that mine is swollen & scarred.
I don't drink & have no stones or hereditary situations so I'll find out tomorrow when I see my gastro as to what's next and if she has an idea of what's causing it.
To add insult to injury:
I had the test done on Thursday and had a really bad attack on Saturday night so when I phoned the emergency they said I needed to come in to make sure nothing was torn. They didn't even have the results and thought I was there trying to get meds. My sister had fun yelling at them but I'm going to make sure my dr makes sure they have the info on file.
I'll let you know what she says tomorrow but I would ask your dr which endoscopy she gave you. The second one I had I could feel her right in my pancreas but at least I know now.
Make them test everything.
