EMG/NCS testing assesses the functionality of the "large" fibers. These are the ones that are employed for both "voluntary" and "autonomic" functions. Based on these tests, my first Neurologist concluded "SFSN". I brought the written results to a second Neurologist. She had some doubts and conducted the tests again.
Her conclusion?
CIDP.
She followed up with numerous blood tests and I am now undergoing Ivig infusions.
Apparently the EMG/NCS tests are tricky and subject to variables, including "temperature".
I suggest a second opinion.