Memories
Reading your post about hearing a jingling collar from a departed pet is not crazy at all. It makes me think of a beautiful poem narrated by the actor Jimmy Stewart a number of years ago while guesting on the Johny Carson show. I defy anyone that watches his tribute to his beloved dog, Beau, not to shed many tears. In his poem he talks about his loss and waking up nights....when he sensed he was near and he'd reach out to stroke Beau's hair, and he wasn't there. You can find the poem by googling Johny Carson and Jimmy Stewart. Highly recemmend you check this out. Also can be found on YouTube by searching same.
Sorry for your loss. I too am still learning to live without our precious Lennex (posted Lenny forever in hearts).