I too suddenly lost my heart greyhound at only 6 yrs old. It was devastating to the max. My prayers are with you. Try to be open minded as soon as you can and maybe she'll send you a sign. In my case, although he sent me a sign within 48 hours of his crossing over, it was still a year or more before I began to heal. I just grieved so deeply. It took me that long for the emotions to calm so I could fully realize that he didn't die-only his body did. That my Slim, the real Slim- the spirit, was still with me and we could move forward together like we always had. That he would never leave me. It is true. Hope this helps. My deepest sympathy.