Those white matter lesions definitely make one suspect you may have some form of central nervous system demyelination.

I see susieQ's invited you the the MS forum; here's the link incase you need it:

http://neurotalk.psychcentral.com/fo...sprune=-1&f=17

And here' the link to the peripheral neuropathy forum:

http://neurotalk.psychcentral.com/forum20.html