I'm so sorry for your loss. Dogs are unique. I had been only a cat person until we got a Great Dane last Spring. This is my first dog. And though losing a cat is very hard, I can't imagine what it will be like to lose a dog. They become such a big part of your life. You make plans around taking care of and walking them. Cats are more independent and rely on you less. So, the bond is huge with a dog. I hope you feel better soon. I found with my cats that passed away, making a photo album was very therapeutic.