Thank you everyone. Tails is always living in my heart and memories. I'll never forget him.
FIP is terrible it changed my life.
I took in a stray cat I found starving outside in December before i knew Tails was sick. So I am hoping she doesn't get sick. I know some say it's not contagious but there's a lot of different opinions on what causes FIP.
It's scary and I hope that one day they can find a cure for it. It's so hard to watch your cat go through something and not have any idea what it is until it's too late. I was not prepared to let him go so soon I was so hopefully one day the vet would say he had something specific. It didn't happen until the day after I had to put him to sleep.