She was missing all morning and afternoon which is not like her. I heard her come in the cat flap at 3.30pm so I went out to see her. She was licking her back legs crying and wouldn't come up the step into the kitchen. She was panting and wouldn't eat, so I took her to the vets. They are keeping her in for x-rays etc but shes clearly hurt her back legs (and maybe a ruptured bladder) and has some broken claws which are apparently consistent with being hit by a car. My poor cat