Nat, I had a similar experience as well. Warning: Spoiler! (Click to show)
That night and every night for a couple weeks, things moved in the shadows, sounds were herd, and a presense was felt.
One night the extreme pressure on my chest thing happened. (sorry) I sleep nude, so when I was able to get the thing off and I got up gasping for air. She saw markings all over my chest and neck of what looked like something putting their hands on my neck and weight on my chest.
She made me apologize to it for calling out to it and we never herd anything again.
Queue spooky music.
Wow, that's spooky! Seeing that would give me nightmares for a good year.