Re: Rescued abused cat. Serious health issues.
I think that is great you are going to be able to bring her to the vet. She really seems like a super-sweet kitty. I had a kitty who had a shortened tail, it was only about 4" long and she'd wave it all over the place.
Something I've noticed with my rescue kitties, is it usually took them up to 2 days before they would use the litterbox. Especially if they had been starved or dehydrated for any length of time. If they didn't have anything in them, it's gonna take a bit of time to make its' way from end-to-end, and the first few meals/drinks will be mostly used by the body before any 'leftovers' are allowed to pass all the way through the system.