in the last week my cat seems to be not using her back legs. Today I found her in a bush just lying there i had to pick ehr up and her back legs were stiff and couldnt move? has anyone seen this or had their cats go thrui the same problem. I took her to the vet they are doing x-rays tomorrow. She isnt in any pain, she still purrs and meows and eats. ITs seems to be nerves or no muscle? She is a pure bred cat a maincoot or something like that....please anyone help me