Will, I am sorry that the small hope that it might not be TCC has been taken away by the lab report results. I know how hard it is to look at a little dog you love so dearly, who appears totally healthy "on the outside", and accept that time is limited. It is heartbreaking.
I know you and all your family will make sure that Ceilidh's days are filled with joy and love.
When we were facing losing our Rory I sat down and made a list of all his most favorite things...foods, toys/games, places to go, etc. Each day we fulfilled as many of those favorites as he felt like doing...and filled our hearts with memories that we still cherish even years past losing him.
Trini