rockmoose
Eats Squid
Soooo much better than the huge post I'd written, then deleted.Talk more to the physio, ask lots of questions about the exercises and what they are for.
If they have given you nerve stretching exercises they are very different to muscle and mobility exercises and you'll need to take it slow.
Stretching nerves is a long process.
Also, try not to worry too much about how it happened or whose fault it is. You can develop a victim mindset which can worsen or completely inhibit your recovery. Life is like a game of cards sometimes you're dealt an awesome hand and other times you get the crap, but you gotta play every hand so make the most of them.
The physio is your key. If your physio seems out of their depth with nerve issues, shop around and find one that is fluent.
Whatever you do, stay away from any nerve suppressing medication.