It depends on what kind you get. Sensory feels different than autonomic.
What you describe could be PN.
The ONLY real way to see if you have small fiber neuropathy is to go to an academic setting where they do intraepidermal nerve fiber biopsy. This involves 3 to 4 'punch' biopsies of your skin, usually at the ankle, the upper calf, the inner thigh and fore arm.
It takes up to 6 weeks to get a result. They will count the fibers and stain them to rule out certain diseases such as amyloidosis.
EMGs can be completely normal in sensory neuropathy.
If you have autonomic issues, they may do an autonomic battery of tests, including, tilt table, thermoregulatory sweat test, Qsarts, and a number of breathing tests. If these come back abnormal, an assumption can be made that you have small fiber, although, usually they still do the punch biopsies.