Open Question: hip pain in a fifteen year old?

I am fifteen and my right hip has been really sore for the last 2 days. When i walk it really hurts too. I don't remember actually doing anything to it, it just started to hurt? I'm not a sporty person or do much of that either? It is also rather sore to touch but as its inside, you are unable to see anything. What can it be? Or how could i get rid of the pain?