I still suffer my own brand of Mystery Sickness, so my experience wouldn't relate to your question, necessarily. If you live to see me announce a Dx, remind me.
You can click on the third little symbol at the top, the magifying glass, which stands for 'search.' It's on the same line as 'Back to Community' and 'Post a Question.' This allows you to search all past threads on the MS forum here.
Just enter what words you want to find, maybe urinary incontinence as an example, and you'll get a list of probably hundreds of threads that include these words. Pick the ones you'd like to read. Change your wording and you may get different results.
There are also some Health Pages on urinary issues, though not, I think, on bowel problems.
Thank you Alex for your reply. I hope it is well treated.
There are special urologists and gastroentrologist who deal with both. You need to ask around where you live.