i was level 50 (again)... i logged in today and it said i was 7. with all of my unlocks rolled back as if i rebooted... AND NO ONE ELSE HAS MY ACCOUNT DETAILS... So where'd my stats go? :/

dude read forum auto reboot ,if you have a backup of your save game profile delete old file and replace with your backup if not you will have to grind your way back up again.

grilla dude! This isn't the profile glitch, sad to say. This is the "cloud glitch" which seems to be happening in greater numbers, along with a "cant connect to multiplayer" after the glitch.