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...
Most professionals recommend wearing earrings for 2 to 6 months following the piercing procedure. The ears will heal, but not close up afterwards. Nevertheless, after 5 years of piercing my ears, I did not wear any earrings for almost a year and although they had long healed, my piercings started to close naturally. So it really depends on the person, but it is important to wear earrings for a few weeks to a few months so the piercing heals without the ears closing. The older the piercings, the harder it will be for them to close. It can take up to 3 or 5 for older earring holes to heal and close if you no longer wear earrings. If the piercings are fresh, they may close up in a matter of hours and you might have to redo them. To prevent this, wear clean stud earrings, preferrably made from silver or gold to prevent infections. How long does it take for a ear piercing to heal?