Hi everyone, just a few minutes ago I was practicing a dance routine that involves lots of hair whipping and jerky head movements. I was doing fine until a move where you have to throw your head back really hard. I'm not that flexible and my hair wasn't cooperating with what I wanted it to do so I got frustrated and whipped my head back so hard it felt like I got whacked in the back of the neck. I actually had a full blown panic attack convinced I had accidentally broken my neck for a minute there. Now the back of my head really hurts and feels kinda pin pricky and weirdly numb and my neck feels kinda stiff.. it's like 3am here, my sleep schedule is really messed up but I was going to head to bed after I finished that last run through of the dance for the night, and now I'm afraid to sleep because I'm worried I may have given myself a concussion or whiplash or something.. I read that it's a lot easier to accidentally cause yourself a concussion than you would think, and I'm super paranoid now. Anybody on here knowledgeable in that area? I know I did a stupid thing, I'll be more careful from now on. But I'm scared at the moment.