hey, so the other day i was kinda fooling around with some friends doing some very very sloppy wrestling/grappling. So the next day my neck was killing me. Couple days after and i can still feel it. The muscles on the side and back are real sore. I am going to start bjj soon hopefully, if not soon eventually. Is a sore neck something to expect? If so what can i do to prevent it? PS what are some tips of getting out of a head lock?