I am 14 and I am feeling pain in my hip. My hip hurt after I ran to give the mail man bills, and it has not calmed. Moving causes pain. What do you think is causing me so much pain? Do you have to have a broken bone before you can get arthritis? The pain is a 7 on a scale of 1-10.

Sounds like you pulled a muscle. No big deal.
MY OPINION. :)