welcome! It is hard to bring it up in the workplace. Some jobs I said nothing (until I'd a relapse), others I said it when I started.
I found that the more open and matter-of-fact I was about it, the easier people accepted it.
The one job where I was a bit defensive and worried about it - that was the time that a co-worker used my unease about it against me in a bullying way and it became very uncomfortable.
Two articles online really helped me:
7 habits for regaining power in the workplace with chronic illness
http://www.acceleratedcure.org/download ... llness.pdf
Working with MS: your guide to navigating the workplace in a healthy way
http://www.acceleratedcure.org/download ... withms.pdf
In my current job my boss is VERY supportive. She even went on a course to understand MS better - the cyncial side of me wondered if she was trying to catch me out but the nicer side of me was really grateful she took the time to try to understand.
Hope it goes well and don't ever apologise or be ashamed for having this illness or needing an accomodation to be made. Good luck.