Chiro has fucked me up before too. I think its because your body is used to being in the wrong position and the new position is similar to being in pain after a workout. Things are being stressed that never were before.
I remember I'd paly golf with him and a few times I came into his office and said, hey, I can't move my neck after you adjusted it yesterday... is this the only way you can beat me?? And he'd fix it.