This is a definite plea for help! Has anyone ever had their entire blog disappear?

I happily hit the link for my blog sign in because I had an especially good blog post idea - I waited

BLANK!! - a blank page with the message at the bottom - Done.

I'm screaming what? It's not done - where's my bloody blog.

So, I thought I would sleep on it an it would magically appear back where it's supposed to be today but no luck.

Has anyone experienced this before? 

I've emailed word press but communicating or getting one on one technical support from them is next to useless. 

If anyone can shed some light on this issue, I'd really appreciate it.