In reply to Vulgar_Monkey:
I'm not a doctor but it does sound like nerve damage to me. They take ages to heal. I once wore a pair of really tight climbing shoes for 11 hours non stop and lost feeling from the tip of my big toe for about 2 years. I've also damaged nerves in the back of my hand from jamming far to hard, that took about 6 months to come back. My missus is trying to deal with a rather more severe kind of nerve damage, and she's made noticeable progress over the last 3 months. Basically, every case is different, but I doubt it'll be a problem for too long.