Bad Dream?

So i was taking a nap and i dreamed i was standing in my room and guin was crying out in the living room. i looked over at the other side of my room and i saw the shape of a person in the air. you could barely even notice it because it was so see through. and it jumped in my mouth and slammed me into the ground and i couldn't move at all. i kept trying to call for help but i couldn't. i just kind of gargled. then i woke up laying in the same spot and i couldn't move still for about ten seconds and guin was still crying in the living room and it seemed like i hadn't even been asleep through the whole thing. creepy. i was traumatized. im still all scared.