Sorry you got the dx of MS. I guess ending the limbo is always good, if only the news was equally good
I'm newly dx (Nov. 07) and was lucky not to go through years of tests and limbos, but just a few months, and found that pretty hard. I can't even fathom 5 years in limbo!
While personally I think anyone with 7 kids must be crazy--if you're not at the beginning, you will be at the end. (lol - I come from a family of 8 kids!) I'm sure you get lots of satisfaction from your family and taking care of your children, I'll bet you're a wonderful mom.
Chin up and all that.