Well, we got the vet to squeeze her in on Saturday. They didn't see any signs of blood anywhere. We're not sure where it came from but my husband and I both saw it. They did discover, though, that she has a UTI and crystals in her urine. I guess it was good to take her. The only bad part was the bill - $180! Yikes. Good thing I work 2 jobs! I love her so it was worth every penny.