I have been diagnosed with PPS,
and also Demyelinating
Neuropathy, supposedly caused by PPS, My EMG
and Nerve Conduction Study test points all came out abnormal, They did a few tests to eliminate other causes of the damge to the Myelin Sheath, such as Vit B12 Deficiency, Lyme Disease, Rhumatoid Artheritis, Diabetes, Lupus and a half dozen Auti-Immune antibody tests and all came out negative, so far they have not been able to control my pain.