How did I lose a Post?

Okay, so I wrote a post called Reassurance. I know it posted because I had a comment which was reported via my gmail account.

And now its gone. When I got up this morning I had a message saying Blogger was unavailable to try again later. When I did my latest post has gone missing.

I am reasonably technically proficient, given my age, but this confuses me. Has it happened to anyone else?