She seemed very tired.
We visited the Vet.
The vet said, "I'm afraid it's cancer."
The vet said she could remove the cancer with surgery.
The surgery was successful.
After a couple of weeks, Patty was playing and eating again as if nothing had happened.
I know that Patty would like to say, "From the bottom of my little, guinea pig heart, thank you very much, Vet:)"