In a fail attempt to do a backbend kickover i fell on the top of my head and hear a loud crack in my neck. I had a mild headache but then it just turned into dizziness. Could my neck be fractured or somthing? I've never broken anything before so I don't know what it should feel like. I just don't want to wake up paralyzed...my throat just started hurting with sharp pains where you eould feel for a heartbeat. I would also like to know if its ok to go to sleep.