Thanks for writing dutchie6565. I can't speak directly to incontinence, but I do know that RA can be linked to digestive tract problems. This article from one of our contributors discusses this: https://rheumatoidarthritis.net/living/digestion-trouble/.
Certain medications can also have side-effects dealing with these issues. Like any new symptom or potential side-effect, you should bring this up with your doctor. Wishing you the best. Richard (RheumatoidArthritis.net Team)