I had a severe relapse 9 years ago that got me diagnosed. I had very poor balance and used a crutch for months afterwards. I had to sleep 15 hours a day, I was asleep more than awake.
I felt I'd never be right again.
I read an article about gentle movement exercise being good for improving balance so I took all the cushions off the chairs in my sitting room, laid them all around me on the floor, and tried some simple exercises in privacy. Even when I feel over I tried again. Gradually, over time my balance slowly improved. It felt "wrong" when I tried a lot of the exercises, but I think you can slowly get some of your balance back.
Found this excellent free guide online to exercising with MS by the UK MS Trust, hope it helps. http://www.mstrust.org.uk/downloads/exercises.pdf
I also went swimming once a week and found it great.
Hope you are feeling a bit better soon.