--small fiber neuropathy, by definition, attacks the tiny diameter, unmyelinated and thinly myelinated nerve fibers that subsume the sensory functions of pain and temperature and autonomic functions, motor symptoms are not part of the symptom profile. If one is getting tremors or fasiculations or other motor symptoms, that implies there is at least some myelinated larger fiber involvement, or some sort of central nervous system involvement (taking it out of the realm of "peripheral" neuropathy).

It's not uncommon for there to be mixed types of neuropathy, such as predominantly small fiber neuropathy with some larger fiber involvement. But pure small fiber neuropathy is sensory and/or autonomic in nature.