When I woke up today, my kitty girl walked like she is handicap...

I had the same issue with my dog one day. she came waltzing into the room and her back leg was really stiff and she wasn't putting much weight on it. I moved it all around and she just stared at me. I think she just must have pulled a muscle while running outside or stepped on it wrong (if animals can really do that) because after a while she was walking just fine!

My cat Micio (pronounced Mee-cho) has to be taken to the vet usually once every six months because one of his toenails has a tendency to curve and grow back into his paw which then gets infected. When I take him to the vet he cuts off the offending claw in a matter of seconds and very soon Micio starts walking better. Unfortunately then he also has to take antibiotics to clear up the infection and it is a little tricky to make sure he takes them. I hope this is not the case with your kitten but it could be a possibility. Before Micio, I had no idea that cats could get ingrown toenails.

She may have stepped on something that is stuck in her paw (did you break anything glass recently?) or gotten a splinter. If she isn't walking better in the morning you should bring her to the vet.

I have had a cat and a dog who both did this. I think that she probably slept awkwardly and is temporarily stiff. She should be fine in a bit. If it happens again or seems to be happening more frequently she may be developing arthritis and you should take her to the vet.

Do you have steps? Possibly she hurt it coming down these. She might have stepped on something too, check your floors good for anything laying around that's tiny. She could have just hurt it running and playing somehow, running into something. Could be a million reasons, just keep an eye on her and see how she feels tomorrow.

Oh my God, I think you have to take to the vet. I always take if anything weird is going on my dear. Non-veterinarian people might give you the craziest clues about this matter.