Lately I've been waking up in strange ways...

For instance, I was having an everyday, insignificant,run of the mill dream, you know the type, seeing friends, talking,walking laughing (not my usual aliens,murder,dead family members talking to me dreams) and then all of a sudden in the midst of the dream convo: my head snaps back violently as if I had been smacked REALLY hard!! I woke up, immediately thinking someone had hit me, but I was alone in my room,shaken up,feeling hot and sore where I had been 'struck'

Also, this AM, I woke up bcoz people were shouting at me VERY loudly, again there was nobody there, and no shouting in the dream either. I even went into the lounge to see if the shouting was a sound I had misinterpreted in my sleep. Again nothing

I feel weirded out...