A doctor might suspect dissociative<unk>  when people seem confused about their identity or are puzzled about their past or when confrontations challenge their new identity or absence of one. The doctor reviews symptoms and does a physical examination to exclude physical disorders that may contribute to or cause memory loss. Sometimes dissociative<unk>  cannot be diagnosed until people return to their pre-fugue identity and are distressed to find themselves in unfamiliar circumstances, sometimes with awareness of "lost time". The diagnosis is usually made retroactively when a doctor reviews the history and collects information that documents the circumstances before people left home, the travel itself, and the establishment of an alternative life. Functional amnesia can also be situation-specific, varying from all forms and variations of traumas or generally violent experiences, with the person experiencing severe memory loss for a particular trauma. Committing homicide; experiencing or committing a violent crime such as rape or torture; experiencing combat violence; attempting suicide; and being in automobile accidents and natural disasters have all induced cases of situation-specific amnesia (Arrigo & Pezdek, 1997; Kopelman, 2002a). As Kopelman (2002a) notes, however, care must be exercised in interpreting cases of psychogenic amnesia when there are compelling motives to feign memory deficits for legal or financial reasons. However, although some fraction of psychogenic amnesia cases can be explained in this fashion, it is generally acknowledged that true cases are not uncommon. Both global and situationally specific amnesia are often distinguished from the organic amnesic syndrome, in that the capacity to store new memories and experiences remains intact. Given the very delicate and oftentimes dramatic nature of memory loss in such cases, there usually is a concerted effort to help the person recover their identity and history. This will allow the subject to be recovered sometimes spontaneously when particular cues are encountered. Definition The cause of the<unk>  is related to dissociative amnesia, (Code 300.12 of the DSM-IV codes) which has several other subtypes: selective amnesia, generalized amnesia, continuous amnesia, and systematized amnesia, in addition to the subtype "dissociative<unk> ". Unlike retrograde amnesia (which is popularly referred to simply as "amnesia", the<unk>  where someone forgets events before brain damage), dissociative amnesia is not due to the direct physiological effects of a substance (e.g., a drug of abuse, a medication, DSM-IV Codes 291.1 & 292.83) or a neurological or other general medical condition (e.g., amnestic disorder due to a head trauma, DSM-IV Code 294.0). It is a complex neuropsychological process. As the person experiencing a dissociative<unk>  may have recently suffered the reappearance of an event or person representing an earlier life trauma, the emergence of an armoring or defensive personality seems to be for some, a logical apprehension of the situation. Therefore, the terminology<unk> " may carry a slight linguistic distinction from "dissociative<unk> ", the former implying a greater degree of "motion". For the purposes of this article, then, a<unk> " occurs while one is "acting out" a "dissociative<unk> ". The DSM-IV defines "dissociative<unk> " as: *sudden, unexpected travel away from home or one's customary place of work, with inability to recall one's past *confusion about personal identity, or the assumption of a new identity *significant distress or impairment The Merck Manual defines "dissociative<unk> " as: : One or more episodes of amnesia in which the inability to recall some or all of one's past and either the loss of one's identity or the formation of a new identity occur with sudden, unexpected, purposeful travel away from home. In support of this definition, the Merck Manual further defines dissociative amnesia as: : An inability to recall important personal information, usually of a traumatic or stressful nature, that is too extensive to be explained by normal forgetfulness.
Fugue state
Spinal shock
Flame of Hope 
Emergence delirium
Dry Drowning
Excited delirium
Cryptic shock
Neurogenic shock