clara21
I suffer from Crohn's disease, and joint pain is common when having a flare up of both Crohn's and UC. The reason for this is that both UC, Crohn's are auto-immune diseases, as is
Arthritis ( the symptoms which you are experiencing). The good news is that when the flare up has passed, so too will the joint pain. I know because a flare up I had last year, the joint pain was dreadful, but as soon as my tummy started to recover the joint pain disappeared.
Good Luck :-)