You lose something. You replace it or let it go and that's that. Except...

Most things don't really disappear. They still exist somewhere in the world. And that's driving me round the bend this morning.

I lost my pulse oximeter. It's a small thing, something I can't let go, but is easily replaced. The replacement has already been ordered.

And yet I can't stop thinking about where it might be. At the dog park? Down under the roses I was deadheading? Wherever my 4th grade notebook went?