She developed a head tilt - you can see it in the photo. Cute - but worrisome! No other neurological signs. We were referred to the neuro who did a full work-up (MRI, spinal tap, blood, urine). She has partial paralysis on one side of her face, but there's no medical reason for it so she was diagnosed with "idiopathic vestibular disease" aka "your dog's head is crooked for no known reason!" She is happy as a clam and it adds to her personality. It may resolve spontaneously one day. It was quite the ordeal for her to get all the testing done, but I am glad we did it.