I have mentioned before that Lee is a dreamer. She did occasionally have dreams that involved some whimpering and twitching. However this past week she has been having what I would describe as nightmares. She is yelping or howling herself and us awake. You know it must be bad when I, the girl who sleeps through fire alarms, is woken up by it. I didn't know a dog could have nightmares. A Google search revealed it does happen. As a sufferer of chronic nightmares I empathize with her. I also wonder why it is happening. Any ideas?