Repeatedly reliving their event, perhaps in nightmares or upsetting dreams, perhaps in intrusive mental images or dissociative flashbacks. Some people respond to reminders of the event with physiological sensations (racing heart, shortness of breath, etc. ) or emotional distress.
Acute Stress Disorder
Something awful has happened, as a result for up to a month the patient experiences may symptoms such as intrusive memories or bad dreams, dissociative experiences such as flashbacks or feeling unreal, the inability to experience joy or other love, amnesia for parts of the event, pushing thoughts or memories out of consciousness,. May also experience symptoms of hyper-arousal, irritability, hyper vigilance, trouble concentrating, insomnia, or an intense startle response.
A stressor causes someone to develop depression, anxiety, or behavioral symptoms, but the response exceeds what you'd expect for most people in similar circumstances. After the stressor has ended, the symptoms might drag on, but no longer than 6 mo.
Reactive Attachment Disorder
Adverse childcare (abuse/ neglect) has apparently caused a child to withdraw emotionally, the child neither seeks nor responds to soothing from an adult. Such children will habitually show little emotional or social response, far from having a positive affect, they may experience periods of unprovoked irritability or sadness.
Dis-inhibited Social Engagement Disorder
Adverse childcare has apparently caused a child to become unreserved in interactions with strange adults. Such children, won't check in with familiar caregiver, and readily become excessively familiar and cross normal social and cultural boundaries.