And those pings and tingles could get pretty awful as the new nerves try and figure out what to do.... My experience has been that when they 'come alive' again? Strange feelings mite last for 30 seconds to 10 minutes, not the constant neuropathy thrum many of us have. I welcome every new twinge as a sign of hope. Whether it is or not.
Nerves die very fast from trauma [which is what it sounds like] but take years and years to regrow! Both the large fiber and small ones as well.
All I gotta say, is....what ever you did? Don't do it again!
Good luck - j