Are they exactly the same issue? To put it simply, no. Recall that nerves are located in the PNS, and therefore are composed of bundles of nerve fibers (axons). The neurons However are just the cells with the anxious procedure. Some nerve fibers (axons) and they are enveloped in myelin https://www.theorthopaedicandpainpractice.com/understanding-burning-pain-in-the-upper-right-arm-causes-symptoms-and-treatment-options/