These flashbacks are often accompanied by a permanent state of anxiety, tension, and insomnia. If the problem surfaces within a few days or weeks of the trauma, it's likely to disappear on its own within 6 months. But if the onset is delayed, the condition may drag on for years. Causes The more sudden, horrible, and injurious the event, the more likely that it will lead to posttraumatic stress. The hallmark of this disorder is a persistent replaying of the traumatic event, either through vivid waking memories or constant nightmares.
Victims typically suffer insomnia.
Many develop a phobia or revulsion towards anything that reminds them of the event. If there were fatalities, victims often feel guilt over their own survival. Emotional pain and anxiety may lead to a burned-out feeling of general detachment. Tranquilizers and antidepressants may provide temporary relief, but don't help over the longer term. Relaxation exercises may help.