Dissociative Identiti Disorder (Multiple Personality Disorder)

• Dissociative identity disorder (previously known as multiple personality disorder) is a fairly common effect of severe trauma during early childhood, usually extreme, repetitive physical, sexual, and/or emotional abuse.
• dissociative identity disorder is a severe form of dissociation, a mental process, which produces a lack of connection in a person's thoughts, memories, feelings, actions, or sense of identity.
• Dissociative identity disorder is thought to stem from trauma experienced by the person with the disorder.
• Understanding the development of multiple personalities is difficult, even for highly trained experts but dissociative identity disorder does exist. It is the most severe and chronic manifestation of the dissociative disorders that cause multiple personalities.
• Dissociative identity disorder is characterized by the presence of two or more distinct or split identities or personality states that continually have power over the person's behavior.
• With dissociative identity disorder, there's also an inability to recall key personal information that is too far-reaching to be explained as mere forgetfulness. With dissociative identity disorder, there are also highly distinct memory variations, which fluctuate with the person's split personality.
• Symptoms:
  Mood swings
  Suicidal tendencies
  Sleep disorders ( insomnia, night terrors, and sleep walking)
  Anxiety, panic attacks, and phobias (flashbacks, reactions to stimuli or "triggers")
  Alcohol and drug abuse
  Taken from http://www.webmd.com/mental-health/dissociative-identity-disorder-multiple-personality-disorder