I think she's just a really mellow dog. At one point I worried that she was so calm because of that, but she has none of the other symptoms (coat is good, she's alert and has good energy, and she's not gaining weight) so I think she's ok. She's just super mellow. The total opposite of most people's dogs I think!

And she does get plenty of excited over certain things. She'll spend hours racing after other dogs into water or running around in the snow. But when it's inside time, she's just super calm.