I second the suggestion to keep a close eye on the kitty. My friend's dog recently died, and the first major symptom was difficulty/inability to move his hind legs. She took him to the vet who initially diagnosed him with a pinched muscle but unfortunately that didn't turn out to be the case. Of course, her dog was like 15 years old so it was probably old age rather than anything else.

Anyway, it sounds like you have it under control. Hopefully it's nothing serious!

P.S. Enjoyed Touch of Evil, loved The Challenge and am really digging The Dare! =)