Well, I am on a Mac and have used this Mac with this iPod for years. So that is not it. I also just checked all around iTunes for a setting that would have told it to update and I don't think that happened. I really think it may have overheated. There is a VERY SMALL chance that I accidently selected everything on the iPod and hit delete. I REALLY doubt that though.
I barely keep any music on my iTunes. The volume of data that goes on and off of my Mac is insane. I have 10,000's of CD's and DVD's. It will be a long while until media is cheap enough, or I am rich enough to have it all on some sort of server setup. There was minmal music on the iPod that was not backed up somewhere, maybe a few tunes if any. It is just fucking strange that all day it was plugged in and I added music and podcasts. Then a few hours later when I went to eject it to take with me, it was empty. All booted up and running but not one song, artist, or podcast on it. It was pretty warm. It may have overheated. I googled and found some people running into this problem that could use Terminal to go in and get the music. Then it would have to be renamed and organized. I don't know how to do that at all anyway. I might try diskwarrior or something if I don't find a safer bet soon. Thanks guys.