A terrible loss

I lost my closest friend yesterday. It may seem odd to some that I give this title to an animal; but that's what she was to me...
I came home from work to find Karma acting as though she didn't feel well. She was shaky on her feet, and couldn't take more than a few steps without having to lie down. She seemed thinner than she did jsut the night before. I took her to the emergancy vet, and after having blood work ran, it was found that she was in renal failure. I was informed that the prognosis was grim. In the few hours that we had been at the clinic, she seemed to get worse. She could bearly move. She was down to 4.5 lbs. She was so miserable. I did what was right for her.
I held my sweet grey girl as she was given an overdose of phenobarbital, and she slipped away in just over a minute.
I feel empty inside. Something is missing; something is gone. My home is empty. It's full of animals, but without her, I feel as though the rooms echo and taunt me. She was such a powerful presence; she played such a large part in my daily life.
I know it will take time to heal; it will take time to not break down with every though of her that enters my mind. She was a loyal friend; and although my heart is broken, she will always reside there.
I love you Karma.