What does it mean when my dog acts scared - My dog is acting scared at night when we go to bed. He gets on my head or chest and has never done that. He runs upstairs and never goes upstairs he. My dog, 5 and a half, all of a sudden hugs my head at night or blankets my chest, She has never done that. She also runs upstairs and never goes upstairs. she act fine most of the day and is eager to go to bed with us at bed time, but seems scared all of a sudden. Her nose is cold and wet and acts normal all day long. Please advise?