Horrible pain in left upper leg??

Okay so i
have horrible pain in my left upper thigh and it hurts so badly to walk, even
sitting now its hurting. Does anyone know what this could be?
Perhaps inflammation in the pelvis or hip joint? Due to arthritis, rheumatism or
an inflammatory disorder like auto immune disease. On the other hand, it could
also be a strain or a sprain. Would be best to talk to a doctor about this, who
could possibly do an x-ray or another type or scan to diagnose it.
You've got a bent spoon in your pocket? Also, you call yourself Megan but your
myspace says you're a 16 year old male?

what's it to be?
Next time use lube