It's been three days since Callie's been gone. I've felt the emptiness of her presence since then, but even so now. When I came home from work and there was no one to greet me by the door. Or meow and thrill for food and tuna. I just feel so alone. I don't know what to do. We have two other kittens... Everyday I go and check their gums to make sure they're not yellow. And I hug them so much that they're practically sick of me, even though I was never as attached to them. Just the thought they might leave us too one day.