CMT Charcot Marie Tooth Disease

Hi.  I received a diagnosis of CMT this past week.  I still have to do the genetic testing to confirm which type.  I still have some unanswered questions and am hoping someone here can help.

Can CMT affect the face, back and stomach muscles as well?  I have severe muscle spasms and twitching in these areas as well as feet, legs, hands and arms.  I can't seem to find much information on it affecting these other areas.

I have also read that CMT does not effect the brain/mind but I'm having some memory problems (just turned 41) and cognitive confusion especially when overheated.

Can CMT affect the autonumic system as well?  ie heat intolerance and dizziness that feels I'm going to pass out but it never goes that far.

And lastly, vertigo....can CMT be the cause of my episodic vertigo that I have had since March 2007?