The leading ladies in my life (aside from Mom) are all up to their ears in crochet and knitting projects. I've jumped on the bandwagon myself, though my project shall remain secret!
Needless to say, I'm periodically suffering from "Crochet Hand" -- explanation below. :)
Earlier this year I started an amusing way (maybe just amusing to me?) to name my injuries, aches, and pains. It started with the now infamous "Pong Knee" where I nearly dislocated my knee while playing ping pong -- don't ask.
It's quite simple Action/Object at time of injury/ache/pain + Body Part.