I read that this is uncommon to rare in cats. My moggy suddenly started limping badly last Thursday, he has paresis and ataxia. He started stopping a lot while walking the week before that. He has severe lower back pain when touched while walking, but not while at rest. The vet says spinal lymphoma is at the top of his suspicions. I was asking around on the Internet and a vet on PetCoach said Intervertebral disc disease is a possibility. Does anyone have any information on or experience with this disease?