Is there a ghost in my grandma's house?

Old houses always feel haunted. Tie in a story about a graveyard and you have a perfect mix for a ghost story. Kids have scary dreams. houses make noises. it doesn't mean you are crazy, stupid or haunted. Your cousin experienced the same thing because he or she was programed by your experience. :) either way you have a groovy old house and no one trying to hurt you. So I wouldn't worry.