NFS: Most Wanted Xbox 360 loading/saving game problums

so i was about to get number 2 on most wanted list and decited to take brake

so i went to xbox menu shut it off. when  i came back every thing was gone but on my

aavatar profile under achevment i still have every thing. any thing i can do to get the game back instead

of starting over.my husband game did the same thing  :womanmad: