In a 2008 autobiography entitled "Breaking Free", Walker confesses that he suffers from
dissociative identity disorder, or DID, formerly known as "multiple personality disorder."
[13] He has claimed that due to his social disorder, he cannot remember the season he won the Heisman Trophy, let alone the moment. He also claimed that during an episode, he had held a gun to his own head. He stated he did not ever remember doing this. He is getting help for this disorder, and feels he has recovered by gaining back control.