She needs to go to the emergency room immediately. The rapid eye movement that you are referring to sounds like something called nystagmus. This can occur with a number of different conditions like chronic ear infections, encephalitis, geriatric vestibular disease, brain tumors, etc....If this, the vomiting, and the inability to stand were the only symptoms your dog was having, then I would say that geriatric vestibular disease or inner ear disease would be high on the list. However, because your dog seems to be paralyzed and is unresponsive when you speak to her...coupled with her apparent dehydration (the sticky gums), I fear that she has something much more serious going on. The higher likelihoods is an encephalitis (inflammation of the brain) or a decompensated brain tumor. In order to really know what is the most likely, I would need to be able to examine her myself.

I recommend that you take her to the emergency clinic immediately. The vet will want to do a thorough physical and neurological examination, and will likely start your dog on an IV to correct her dehydration and some steroids to stop an inflammation that is occuring in her nervous system. Based on the exam and most likely some blood and urine tests, the vet will be able to tell you what the likely possibilities are.

I hope that this information is of help to you, and I wish you the best of luck with your dog. Please let me know if I can be of further assistance.

Dr. K