Wow Abby!!!
I starting the slowly sinking to the floor just this week. It's been only a 3 month progression for me with these symptoms end of Nov-now. I thought I was crazy, sometime I am like, am I making this up? because it's so weird, and I was always so healthy. I read about people just dropping to the floor. That doesn't happen to me, it's a slowly sinking until i'm in a squat and on the floor. In a way it's good so I don't crash on the ice outside and hurt myself.
I am going to take your advice and start to write everything down. Then at least the neuro will have something to go on and he can figure out whats wrong, even if it is not this disease.
Thanks Again.

-S