Strong feelings of being watched or followed
Possibilities: Strong imagination or medication side affects
Sudden cold areas or feeling
Possibilities: Some rooms that are not fully furnished or tiled may attribute to colder temperatures
Sudden unexplained breezes
Possibilities: Ceiling of regular fans, open windows
Hair on arms and neck standing on end
Possibilities: Static in clothes, walking on carpet barefoot
Unexplained voices
Possibilities: People outside talking, neighbor's radio or tv, etc
Shadows
Possibilities: Lights casting shadows, people inside or outside of the structure walking by. Trees outside of windows
Movement out of the corner of your eye (usually when you are alone)
Possibilities: Extreme fatigue
Appliances on/off
Possibilities: Electrical issues, TV sleep timer on, clock alarm set, etc
Doors opening and closing on their own
Possibilities: Suction from drafts or another door being opened, breeze from open windows, uneven door
Items being moved, rearranged or missing
Possibilities: Someone else moving or touching items, memory loss