I took her to the vet Monday as she isn't herself, not eating well and lethargic. Vet said nothing medical she can see, but bring her back Friday if she hadn't improved. Back from work today and she had a giant bloated belly. Straight to vets for an emergency appointment. They think it's FIP. They've taken blood and a sample of the fluid in her abdomen. They gave her a strong worming tablet.however the vet isn't hopeful. I'm devestated, we've only had her around 5 weeks.