Hi, i've had all sorts of parasthesias ranging from buzzing, pins & needles, electric pain, shock like sensations in my legs and feet when I had disc tears & herniations and some of these sensations with lurabar stenosis. But i've also had hot spot sensations on other areas of my body, such as my hanRAB, arms, neck, and my entire back. Many times they are tiny areas, almost and it's as if someone is taking one needle and poking it real quick in one little spot, then it jumps to another little spot. Sometimes it feels icy hot like it's realllly cold but hot at the same time. I think the first this happend to me (many years ago) it started on my arms. I was outside on a clear sunny day, and first I thought it was raining or something, but it wasnt and no one else felt anything. Other times I've gotten this feeling all over my back and other areas. IT doesnt last long ,though , but it feels weird. I am pretty sure it must be nerve related.