I totally relate. It's been less than 3 years since my rrms dx and I feel the same. Except I have no kids, no husband and I still work. I only work cause I have to. Weekends are pretty much spent on the couch or bed. I've thought about getting a roommate cause these medical bills are eating me alive not to mention these student loans for an education that I can't finish or use now due to ms. Housework gets done when it gets done.
I look at it this way, it could be worse. I just do what I can do and fight the good fight. I can't find a good neuro close enough to drive myself. I can't seem to find anyone dependable to provide reasonable transportation to appointments. My primary is downtown Chicago and she is really good.
I would say do what you can do and don't beat yourself up. These are just the cards you were dealt. You didn't do anything to bring this (bleep) condition on yourself.