I'm not a medical expert but I think demyelination is one of the reasons you feel nerve pain. This might explain and hopefully answer your question.

"A demyelinating disease is any condition that causes damage to the protective covering (myelin sheath) that surrounds nerve fibers in your brain, the nerves leading to the eyes (optic nerves) and spinal cord. When the myelin sheath is damaged, nerve impulses slow or even stop, causing neurological problems."
--- Demyelinating disease: What can you do about it?: https://www.mayoclinic.org/diseases-conditions/multiple-sclerosis/expert-answers/demyelinating-disease/faq-20058521