Lisa,
There have also been some members here who have had PSC and I recall a thread about the linkage between PSC, which is a bile duct disorder, and autoimmune disorder. There was a member by name of Shell Worrall from the UK who posted fairly regularly who at some point was diagnosed with PSC. More on PSC here:
https://en.wikipedia.org/wiki/...lerosing_cholangitis
Here is Shell's board profile here. Looks like she hasn't visited since January of this year:
https://www.j-pouch.org/profile/434913817489767298