I've noticed something similar in the past. Something will happen in a dream such as I get touched in some way or another and I will percieve the sensation of pain. I will wake up and the part of the body where this happened in the dream will be sore. I'm sure there's a logical explanation for it like maybe a muscle twitched while I was sleeping and it triggered a dream explanation for the physical happening. I've had the freeze up thing happen before too and found that just stopping and waiting a minute and reassuring myself that I am free to move if I want to cleared it up.

-Bedlam