Sorry to hear your daughter's having such a rough time!
I have celiac disease, physical urticaria with dermatographia (hive-like "skin lines" - I'm all red and blotchy coming out of the shower), juvenile rheumatoid, ovarian cysts and AI hypothyroid, so I can attest to AI diseases bunching up together.
Some docs think polycystic ovarian syndrome itself might be autoimmune.
I'd suggest she get tested for celiac if they haven't tested her already, celiac can cause chronic pancreatitis. Good luck, I hope it's just some viral infection that will blow over!!!