IMO,, and the neuro agreed wh me last week, the pin prick test is pretty suggestive,, you think you feel it being dull or sharp, then you begon to second guess yourself,, was it sharp or dull,,
The one and only place I was sure it was dull was in my hands,, I had my eyes closed and I told him that if your using a ball point pen, then its dull,, he was using a pin,, I still have the red dots from the pin on my hands,,
If the EMG;s and the skin biopsys from THREE places show nothing,, then its something else,, BUT its quite possible the biopsys were not read correctly,, it might be prudent to have them read again by a outside source, mine was done by Athena,,