Hi jammyh,
I'm sorry you've had such a bad night and I'm sorry you're feeling so down about all the physical changes that are happening to you right now without any definitive answers.

Rant all you want, it's OK.

I can't answer some of your questions but I still think that getting a 2nd opinion is sometimes a good idea.

take care of yourself.

P.S. Maybe reposting your message on
General Health Conditions & Rare Disorders Forum
as well as Neuromuscular, might get more viewers.

You could also ask the members on the
Multiple Sclerosis Forum
about the Positive Babinski and pronator drift.
Positive Babinski reflex can occur in numerous disorders, but the members on the
MS Forum may be able to explain it to you better than I can.

Another thought... have you ever had your Vitamin B12 levels checked?