My house is haunted!!!

So there i was just minding my own buisness playing my piano downstairs. All alone mind you. My dog was sitting next to me when all of the sudden we heard a noise. my dog yellped and tucked her tail under and ran upstairs. I then looked at sitting on my chimney mantel was a glass vase. It then began to slowly slide towards the edge then as it got about a foot from the edge it flew across the room and shatterd all over the ground. Not a monent longer i was upstairs. i've been waiting up here for a while. I just went back down to grab my computer and it is FREEZING!!!! i mean unnatuarlly cold. Help!!!!