Please accept my condolences. I certainly can appreciate how you feel at the moment. From my experience this summer, you will get over it, but only time will help.
When Mowgli died we ended up planting a new rose bush in the garden near where he used to pee all the time. He was creamated and now sits on the mantle waiting for DH to make something for him to live in. Why even this morning I was missing his thump, thump, of his tail on the bed frame in the morning. It does get easier, but you still miss them.....
hannah