Symptoms of Post-Traumatic Stress Disorder include :

Recurrent dreams, flashbacks, emotional numbing

Very often people who have been caught in a natural disaster (such as tsunami) or have been victims of bomb blasts by terrorists, or been in a serious accident or in a war-related situation, experience post-traumatic stress disorder (PTSD). PTSD symptoms vary widely but may include recurrent dreams, flashbacks, impaired concentration, and emotional numbing. Adjustment Disorders and Acute Stress Disorder are also included under this category.