My 15 year old cat, Pitten showed symptoms of a UTI on Sunday morning. (crying, trouble urinating, blood in urine) I had some Clavamox from a prior UTI in the spring and administered as prescribed. (one dose every 12 hours) The UTI symptoms seemed to abate significantly a few hours after the first dose. In the early evening of Wednesday as we were preparing to go out for the evening, she came out from under the bed where she had been sleeping and was crying and appeared to be having trouble maintaining balance in her rear legs. She seemed to not be able to stand very well and would just lay on the floor and cry to me. I called ahead to the animal hospital to notify them that I was bringing her in. Unfortunately, ever since she was spayed in her younger years, she has hated everyone except me. You would think she was completely feral if you didn't know any better when others are around. Of course, this makes taking her to the vet a real challenge. When we arrived at the vet, they took her in the back to sedate her to that they could take some blood and urine specimens and xrays. They administered the first dose of sedative (with great difficulty) and waited for it to take effect. No luck. They administered a second dose and again waited. No luck. The vet did not want to administer any other doses as they felt she may not survive a third dose. They advised I take her home with something for pain and more Clavamox. She is ravenously hungry (not typical for her), and unsteady on her feet. When she goes down the stairs, she lists to the right and it appears almost as if her hind legs are going faster than her front and pushing her down the stairs quickly. I'm at a loss as to what this might be and because she is so antisocial, the vet is not able to diagnose her. It breaks my heart to watch her go through this. Any ideas or experience out there on what this might be?