Really I dont know. Im 13 and i have the same thing. You might have flat feet which irritates it and if you do get arch supports. Make sure they are either custom ones or semi arid ones, no cheap ones because they make it worse. I see a orthpedic and other growth pains might effect it such as osgood schlatter which i also have or any pther things may effect this. I am an athlete so if you walk or run alot to it may hurt.
nothing
viral infection
yes freezing a chicken egg will cause it to swell and crack.
Having boiling oil dripped into them can cause them to hurt.
Well, I am unsure though, I think your eye would swell up and hurt very bad.
Nope. They just pierce it. Anything they could use to numb your lip would cause it to swell up, making it hard to pierce you accurately. Besides, it doesn't hurt very much.
It can hurt you, cause it can bond your eyes and skin in seconds, so i would say yes, it can hurt you.
'Cause it rotates vertically
No. You may not be aware of some broken bones
No you can not. There's the risk for infection that would be too close to the womb and the vagina can also swell during the pregnancy so the piercing would hurt and need to be removed.
see a doctor right away.
Can gas cause your arms to hurt?