Replying to Whats wrong with me?

Umm, so the other day, i wrecked on my longboard. My pelvis hit the asphalt at around 20 mph... for a while, it was just scraped, then a yellowish bruise came up... then it turned purple, then my skin returned to normal colour. Now, however, right around where i hit, there is this hard(ish) thing under my skin...

Hard to describe, almost like a stale, oversized gummy worm... under my skin...

Anyone else had anything like this from an impact? Could be a hemotoma(sp?) or something I dont know... anyone had this?