--it's quite common for nerves that ae "waking up" again, after long periods of damage or disuse, to recapitualte the same symptoms they produced in the process of getting damage. This has been noticed by people with peripheral neuropathy, spinal cord injury, radiculopathies . . .apparently, many of these strange sensory symptoms come from a brain trying to make sense of new and unusual input. When nerves start to re-grow and attempt to reconnect to their targets, the brain, at least for a while, has trouble interpreting the new sensory data and may well interpret the info as painful, electrical, or any other weird sensation one might feel when nerve damage is ongoing. It does tend to recede after a while as the brain gets used to the new input, but it can be nerve-wracking (pun intended) while one is experiencing it and one does not know whether one is healing or experiencing new damage. It only becomes apparent which in long-term retrospect (months to years).