The vet thinks that he may have had a small stroke or spinal stroke. Due to his liver disease, I really didn't want him to be anesthetized for an MRI or CT scan. Senji doesn't seem to be in any pain at this time. He's able to jump up on the sofa and is eating and drinking pretty well now. He seems to walk at a bit of a diagonal sometimes and loses his balance a little when he lifts his leg. Otherwise, he seems to be able to run and climb around the neighborhood hills fairly well. In July, we think he may have gotten shocked when he chewed through an electrical cord. We think he may have had a small stroke from that too. He started to get spooked from shadows after that happened. Senji is going to be 16 at the end of this month. 5 years ago, he was diagnosed with severe liver disease. The vet didn't think he'd live more than a year. Here he is…4 years past his expiration date! He's had a good life. He eats good, mostly organic food, drinks filtered water, and gets lots of walks every day. As long as he's not in any pain or losing bladder and bowel function, I'm fine with the way he is. The vet just recommends palliative care at this point.