Sight-Strange, freaky pieces of art that are suggestive of things beyond this life.
Sound-If I'm about to sleep and something is loud enough to alert me and send my heart racing.
Touch-Hair and spiderwebs are annoying. I'd be plenty freaked out if I felt another body in bed that I didn't remember but that hasn't happened.

Yet.
Smell-Rotting things that smell somehow sweet but are sickning somehow.
Taste-Rotten food, things that are not supposed to be tangy but just are.
The uhh, other sense-Whenever I am alone and a creepy image flashes into my head.