Hi i have a cat 3 years old. She has come home this morning not weight bearing on her left back leg miaowing in pain. Not eating her food. won't let us touch her , she hisses. Is sleeping quietly at present. Our vet is closed and reopens on Monday. We don't have pet insurance. What do you suggest? Thanks
Sorry to hear about Coco. I know you wrote your question several hours ago, so not sure how she is doing right now. Hopefully still resting comfortably.
If Coco is not bearing weight on her left rear leg, my first thought is a hip dislocation. I've seen those in outside cats that fell out of a tree or got hit by a car. She may also have a fracture somewhere, or, best case scenario, hurt her paw in some way (torn toenail, fractured paw, abscess, etc).
Obviously if she isn't better by tomorrow morning, you will need to take her to your regular vet. Anticipate possible sedation (particularly if she is still quite painful) and a couple x-rays to evaluate her hip and to look for fractures.
For tonight, letting her just sleep where she is most comfortable is the way to go. If she has a fracture or a dislocated hip, being moved will be very painful. Don't worry too much about a litter box--cats can hold their urine a LONG time. I would put several towels in the cat carrier tomorrow, however, as she may urinate on the way to the vet.
I would also go ahead and give her an 81 mg aspirin today to help with the pain and inflammation. If she is around 10 pounds, you can give her a full 81 mg tablet; 1/2 of a tablet if she is a smaller cat.