Angel...

You might want to make sure you didn't create a folder within a folder for your shared files. I know this sounds stupid but I thought I had lost a lot of stuff, too. Turns out that my kids made their own folder within my shared folder. When I looked in the SHARED folder on my hard drive, I saw nothing...Then I found out that everything I had been downloading had gone to their folder which was inside my shared folder.

Not sure if that helps...just something that happened to me when I thought I was losing stuff...And not trying to insult your intelligence if you already thought of that...