My Lucy was about the same age when she took really bad cat flu. It stunned us because she was an indoor cat. Our vet thought that it was a recurrence of something she had as a kitten long before we got her.
Lucy was in the vets on IV fluids and medication for 4 days. She wasn't doing very well and by the 4th day, even though she was pleased to see me when we visited, wouldn't eat - despite me having brought her own feeding bowls to try and get her to eat.
It was decided to let her come home and see how it went. As soon as we got home she was asking for food! She just wanted to be home.
Lucy lived to be at least 22. She had several episodes of cat flu but was never hospitalised again as we learned how to cope with it with meds from the vet.
Like human colds and flu, the virus will run its course, usually about 7 - 10 days then there should be an improvement. I really hope Purrcy can hang on in there.
Sending much







her way.
I hope Purrcy can pull through