As long as I can remember, I've had leg pains in the exact same spot, being my inner calf. As I've grown up though, it seems that it changes a bit. Its always the same spot, but it now start in one leg (typically my ankle), moves up it, then switches to the other side, down that side, to that ankle.
6 weeks to fully heal to be able to change the earring. cartilage piercings take longer to heal than some other piercings. 6- 12 months is standard. A year is not uncommon either. If you take it out even when it is fully healed and leave it out for too long the hole will close up and this can happen very quickly. http://en.wikipedia.org/wiki/Body_pierci...
How long does a cartilage piercing take to heal? *cough* I'm also going to get a cartilage piercing.. how bad does that one hurt on a scale from 1-10, how long does it take to heal (or, I mean, how long until I can change the earring), how long can't I sleep on it for, and which hurts more, with a needle, or with a gun??