I recently noticed Panther sneezing A LOT! But it didn't start until we put up our Christmas tree about 5 days ago. She seems a little lethargic and also seems to not eat quite as much as usual (although she still eats most of her food). However she still seems to play just as much as normal and is just as feisty, she just seems a little off her game. So I am wondering if this could be related to the tree (blue spruce) that is now in our house filling it with its pine odor, or if it could be something more serious like a URI. Any ideas? Thanks