Our kitten, Molly, came in after being out in the garden this morning, but she was 'hopping' and holding her rear right leg in the air, and not wanting to put any weight on it.
We know from experience of one of our other cats that they can sprain their legs/paws as Jasper has come in before doing this (we have always taken him to the vet to get an anti-imflammatory injection to help anyway) but the thing that worried my husband and I was that when she was sitting - her right rear legs was at an awful angle, not how it should be.
Thankfully the vet had an appointment and we got her down there. The vet said it's not broken (phew!), but he thinks she's either sprained it or she's had a bee sting (which is quite possible!). He also said as she's young (9 months) it may well be the frist time she's ever sprained her paw, and was just not sure or aware what to do with it, and may had been putting it at this odd angle as it was more comfortable for her.
Anyway - she's back home, having a snooze under the bed, with 2 very relieved parents!