My 4 year old Apollo, has FIP. after 4 trips to the vet, diagnosis of first UTI then shots, blood work, one good vet visit where we were told all was normal ( Thursday), rushed him back in today for increased lethargy and urinating dark orange and after an ultrasound showed fluid on abdomen, vet told us she is 70% he has FIP. Fluid was yellow and viscous. Blood test showed no protein in fluid so she wouldnt say she 100% sure it is FIP but her gut is telling her it is. GAve him another steroid sot and if he doesnt make a "miraculous" recovery in 2 days or gets worse, we have to put him to sleep. I posted another thread about his 17 day journey so far, but wanted to update everyone on the turn things took. Devastated is not the word...my whole world is upside down. He is eating and drinking, but cant walk too far. In quarantine from the others now . Cant wrap my head around having to say goodbye to a cat who two weeks ago was so full of life and love and fun. Heart is broken.