I have a some what similar dream. It took place about a month ago. I was sleeping I my bed room, I had a dream where I was laying in my bed. I got up from my bed in the dream, then walked out the door. I came back into the middle of my room, where I felt the very strong presence that something was in the room with me. Before I knew it, the room was "spinning" around, but it was really a bunch of shadow figures swarming around me. After what felt like they where moving closer to me, I woke up and felt this strong presence was in my room. I looked in a corner and saw a shadow figure dart right out the room.