Are they a similar issue? Simply put, no. Recall that nerves are located in the PNS, and are made up of bundles of nerve fibers (axons). The neurons However are merely the cells of the anxious system. Some nerve fibers (axons) and so are enveloped in myelin sheath, a lipid https://www.theorthopaedicandpainpractice.com/understanding-burning-pain-in-the-upper-right-arm-causes-symptoms-and-treatment-options/