This dog was not having a dream. He is having a seizure. My fiancee' is a vet tech for a very busy animal emergency hospital. This video alarmed her. The dog needs a neurological visit. Considering she has been in the vet field for 9 years I would have to say she would be able to tell. I have owned dogs all my life and have had dogs dream. We had a Labrador that was abused and had very bad dreams. Nothing like what that dog was happening. There are certain signs that will let you know when he is postictal. He actually shows them very well. When postictal he was not alert, hunched over and not responding to voice of owner. When you seen him barking he was barking at nothing. I have also seen people in this state. (not barking of course LOL) If you watch him run it is not a steady run. He goes from a paddle to stopped to flailing. Trust me what you are seeing is a seizure. Also, all animals present slightly differently when having a seizure.