[vubuntu]

>"I felt like someone was standing in the room with me and was (irrationally) terrified."

This has happened to me couple of times as well.

Upon reflection I have noticed uncanny similarities to the below movies..

Lucid Dreams == Inception (http://www.imdb.com/title/tt1375666/)

Sleep Paralysis == The adjustment Bureau (http://www.imdb.com/title/tt1385826/)