i'm sorry you're having these problems.

i know stress can do a major number on someone but i just don't buy "stress" as an answer to a physical problem, especially when you've been dx'd with MS. and your problems sound very neurological to me.

have you had a recent MRI? did it show any increase in lesions? or active disease, enhanced lesions?

you might get a copy of your dr's dictation from your visit.
i wonder what the neurological exam showed. he would have to address that in his notes.

you might also want to Q whether the avonex is working for you.
sometimes changing to something else works.

however, I'M NOT A DR. i assume your dr would know what's best.
write down your Q's so you can ask him for your next visit.
also, you might want to keep a sx journal (symptom). write down the date and any sx's you have. it can help the dr with a medical timeline.

i hope the PT helps.
keep us posted please.