A patient states, I feel detached and weird all the time. It's as though I'm looking at life ...

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The DSM-IV-TR description of depersonalization disorder states that it involves a persistent or recurrent experience of feeling detached from and outside one's mental processes or body. Although reality testing is intact, the experience causes significant impairment in social or occupational functioning and distress to the individual. Body dysmorphic disorder involves preoccupation with a body part the individual believes to be distorted. Dissociative amnesia involves memory loss. Malingering is a conscious effort to deceive others, often for financial gain, by pretending to have physical symptoms.