Hi: I was diagnosed at 39 years of age and I am now 51. I almost died 7 years ago from a UTI that I didn't know I had and it backed up into my kidneys and almost caused complete organ failure.
To make a long story short, bladder urgency and diarrhea are NORMAL for MS. I have to utilize intermittent catheters every day for bladder to empty completely. Never had the diarrhea but bowel problems are also NORMAL.
Try going to the bathroom several times per day. You may need to see a Urologist to see if everything is OK. Sometimes with MS the bladder muscle starts to weaken and that causes urgency problems, etc. Keep your chin up. Perimenopause sucks. I have one (1) more month to go to reach "menopause" but hot flashes will probably go on for another 9 years or so.
I stopped taking Copaxone years ago and DO NOT take any DMD's and I feel better for it. Hated injecting everyday and also my skin started breaking down on my hands. They want me to take something else but my health insurance does not cover it at all -- I still work every day and my muscle relaxers and pain medication are more important to me than taking stuff that they have NO IDEA how it works. Read the insert sometime on the medication. They only studied 2000 people or so (when I stopped taking it) and there are millions of MS patients in the US alone. When (if) I ever get to Medicare/Medicaid I might go back on something.
I have had only two (2) relapses in 15 years -- and my neurologist classifies me as "MS Stable" if there is such a thing. I thank God every day for that.
Hopefully your MRI will show something -- HANG IN THERE!