Thanks everyone. I appreciate the kind words and I'm sure Cheeto does too.
I'm so confused because from everything I'm reading, it sounds like a losing battle. But the vet made it sound like there is still hope for her. She doesn't seem to be in any discomfort at all but I know they're good at hiding it. She is still playing, eating, and running just fine so it's hard to wrap my brain around how bad this might be.
Do I need to be prepared for the worst?
I have to admit that I'm not familiar with this situation at all. I listened to the vet who was hopeful but now I'm reading that there absolutely is no cure other than spaying.