I had migratory arthritis a few years ago. It went along with my crohn's symptoms. They treated me for crohn's even though the colonoscopy only showed some inflammation. I did get better on the asacol and endocort... but after a few flare ups and the meds not working (over a year later) they said I did not have crohn's and we still go on looking. My joint pain was really bad back then and could be in any joint at any time, mainly my knees/elbows but also in my toes and fingers! It can be a symptom of any autoimmune disorder.