I turned on my laptop today... and everything was back. As though I hadn't even turned it on yesterday. None of the stuff I was panic-saving/trying to get from others was there. But everything I had before was still there.

So at the moment I'm really just coming down with a huge case of WTF-itis. I really can't explain any of how it happened, just that it did. So, yeah. Disregard the previous journal, the random problem sorted itself out.