Golden, yes!!! I don't want to scare you, but take her to the vet right away!! ASAP I'm surprised that your baby is having this problem as it is more prevalent in male cats, but it sure sounds like a UTI (urinary tract infection) to me!! My Scooter has had serious UTI problems, so I've had quite a bit of experience in this area. He's exhibited many symptoms, but any kind of straining and blood present is a sure fire sign of an infection. Maybe it was brought on after having the kittens?? In any case, your vet should be able to give you some antibiotics to help the infection. I'm sure they'll run several tests to make sure there are no crystals or blockage. Poor precious baby!!! Give her lots of gentle head butts for me and let us know how she is doing!!=^..^=