Have You Ever Lost a Published Post on Your Blog?

One of my posts has disappeared immediately after I published it.
It was live, I saw it. I read it.
Then it's vanished.
It's not in Draft, it's not Live. It's nowhere.

I thought I dreamed of it or maybe I went insane somehow... too much work.
But I wanted to make sure I wasn't crazy, so I looked on Google+  where my posts are automatically published when I hit Publish.
Here there is...
But when I click on it, the link goes to my page, but there is no post.

I am shocked. 
I am not sure what to make of it.

I checked on a different blog to see if my post appeared on the last published from my blogs list.
And here it is again.
Same issue.

There is no error. No 404 - missing page, broken link or whatever. There is nothing. Nothing at all.

What is going on?
Has anyone encountered such an issue before?
Is it a glitch in the system?
Will my post ever reappear as it disappeared?
Should I be afraid that it might happen in the future?

Please help.
What should I do?

Please don't say to write it somewhere else than copy it here. I have too much to do.
Besides, the post is not only a post, but it also has the tags, the description. It's doubling the time and the effort.

I will ask Blogger in the meanwhile.
I want my post back. It was there!
I haven't saved it anywhere else.
Where has it gone?
Why?

I am annoyed, confused and tired.
This should not happen.