Goodness! Sorry to hear about your falls. Hope you mend quickly.
I had one bad year where I fell five times rollerblading. The fifth fall meant an ambulance and a miserable year and a half in physio.
I know exercise is supposed to make you feel better. Since I don't have a dx and over the years my doctors told said I was imagining things, I would push and push myself to exercise only to feel horrible afterwards. I can honestly say exercise does not make me feel better.
Snoopy: I understand about the "slowing down part", when one feels good it's too easy to think we are normal again. My head is in my twenties, my body isn't and when I fall, I don't bounce.

I keep having to remind myself to walk carefully.