So sorry you're having a rough time right now. I agree with all the others in thinking a BIG shot of IVSM would be a good thing. Also, the bed rest might not be a bad thing either. Years before I was diagnosed with MS, I had optic neuritis (probably the beginning of my MS) my eye doctor put me on pred. and confined me to bed. Couldn't do stairs, cook, or anything except go to the bathroom. Besides the vision problem, the balance was affected too, like you. Much safer to rest until things improve.

All the best and let us know how you are!