hi. I've been having hip pain for a few days now. I'm only young so it's not arthritis, I went to a trampoline park with my friends but when I got back I had some pain in my hip and the next day it was so bad I could hardly walk. 

The pain feels like someone is pressing down on the side of my hip, and when I lay down it will start burning up. Sometimes if im sitting up or laying down the pain will just stab in. It will also spread from my side of my hip, to my bum, groin, tigh and knee. 

Has anyone got any ideas of what this may be because the pain is really bad. Thanks