Poor sweet Kalypso. I glad though that she is still running and playing.

I was going to suggest the same thing that Catty1 did. Getting a sample to the vet tomorrow. At least they can rule out any bacterial infection or worms. Personally, I think it could be the food. This happened with Lindy Lou when she got into the adult food. All I did was kept her in my room for a few days and mixed some Rice Baby Cereal in with some wet food and gave it to her. Within two days her bowels were back to normal, and the adult food got put up higher.