This morning, all of the sudden, Kitty lost control of her body movements. She started swaying as she walked and then she began to drag her left hind leg. She kept falling off and could not jump, she began to look confused and disoriented. We had to rush her to the emergency vet. After an exhaustive physical examination and running a few tests (bloodwork and urine) the vet ruled out diabetes and heart disease, however, test results were not conclusive. As we suspected, the underlying cause seems to be neurological; it could be a tumour in her brain or some abnormality in her spine, so a CT scan will be needed to get an accurate diagnosis.