When I take a break from playing and then start up again, I completely shred my fingertips all over again. For about a week I'm peeling skin off my fingertips and letting them heal again until they build up calluses all over again.
Not to mention the pulled muscles in the left forearm and constant reminders to keep clipping my fingernails.

Goes with the territory and you don't even think about it that much.
It's just part of being a player.