We adopted our kitty almost 3 months ago from a shelter. He is almost 5 month old now. Since the day we brought him home he had diarrhea and 2 outbreaks of sneezing and runny eyes/conjunctivitis. After few different antibiotic treatments/eye ointments and dewormers, his diarrhea was under control and eye back to normal. vet assumed it was worms... he also had a history of swallowing strings before i could grab it off the floor, but passed it in his stool. hence, antibiotics and some meds to coat his tummy to make sure the diarrhea wasn't from that. i finally had a perfectly healthy kitty for about 3 weeks. 10 days ago hoping to introduce better food brand, i let him eat about half a can of new food (he loved it). 2 hrs later he had diarrhea again. i assumed it was from new food. cut it out, and waited for 5 days for diarrhea to go away, per vet's advice. it didn't get better, and the vet prescribed fligyl. on sunday, he vomited. it looked yellowish liquid with stray hairs. on monday i noticed his tummy being bloated. he was sleeping much more, and i noticed that he was shedding a lot. called the vet and took him in on wed. vet thought maybe he swallowed some string again and it was stuck. did x ray and ultrasound. saw a bit of gas and "moderate" amount of liquid. vet took a sample of the liquid for testing. his temp was 104.5 i believe btw. test came back and showed the following "specific gravity 1.039, protein 6.6 g/dl, WBC 1070, RBC 2000. Moderately cellular sample is present on a pink stippled proteinaceous background with low numbers of scattered red cells. Nucleated cell count differential is: 44% non-degenerate neutrophils and poorly preserved neutrophils, 47% small mononuclear cells.small lymphocytes and 9% large mononuclear cells/macrophages. No infectious agents or neoplastic cells. Based on high protein content of the fluid, FIP is a consideration. However, typically neutrophils predominate in FIP effusion. Other differentials to consider include inflammation of an organ and sterile irritants." The vet believes that my kitty has FIP. She mentioned that we could do a blood test and look at titer levels and if they are high that support FIP. She also mentioned that we could do a complete blood work up to see if anything else shows up. but she doesn't think that it is worth doing because she believes the outcome will be the same (whatever it is it it's fatal). her opinion was to focus on supportive care. what should i do??? i don't want to put him thru any pain or discomfort. it is not about "me knowing" what's wrong if i can't fix it anyway. he is our only kitty. got him for my daughter, and we are all in love with him. it breaks my heart. and he is such a sweet little boy. side note... his diarrhea is gone, he is eating, using his litter box, but does seem a little off. sleeps most of the time, not really interested in playing, and once in a while makes a little crying sound when i pet him. he used to purr like crazy when i would pet him before... pls give me advice... thank you.