A couple of years ago I was in bed for the night. My husband was sound asleep and the dog was sleeping at the foot of our bed. I woke up to feel a sudden, unpleasant chill at the top of my head which slowly moved down my body. When it reached my feet and the foot of the bed where the dog was, the dog suddenly got up and started howling. This woke my husband up, and I explained to him what had happened. He thought it was only a draft. I know it wasn't. Our house is new - we just had it put in shortly before this happened. Nothing like this has happened since, but I've always been curios as to whether this was a ghost.