Lexar USB Drive keeps appearing under devices as NO NAME after I just used it for a 3 hour graphic design project.

After spending three long hours on another mac computer in the university computer lab on a difficult project for my graphic design class, I'm now at the point of tears because when I returned to my dorm, I put the USB drive in just to make sure everything was there and for some reason it appeared under devices as "NO NAME". When I clicked on it, it was completely empty. I thought I ejected it properly before leaving the lab, I even waited to make sure I didn't get the notification that I didn't eject it properly (which I didn't) so I assumed I was good. I've restarted my laptop several times but it shows up as the same thing. What on earth did I do?! Is my project gone for good?!