I'm going through the same thing with Ruthie right now... she'll be 2 on tuesday and I found out friday that she may have a liver shunt. I can't even think back to where she may have had any symptoms - I took her to the vet in the first place for a bit of a cough which the vet couldn't determine a cause for. I take her in tomorrow (monday) morning for tests.
Fingers crossed that things turn out well for you and your little one
