Intrusion symptoms: These include dreams, memories, or flashbacks. They occur when a person repeatedly revisits a traumatic event in their mind. Symptoms include:nReliving a traumatic event.nI have recurring images, illusions, nightmares, thoughts, or flashbacks of a traumatic situation.nI am feeling distressed about the memory of the traumatic event.n Dissociative symptoms include symptoms where a person lives in an altered sense of reality. They may black out parts or all of the traumatic events from their memory or lack awareness of their surroundings. Symptoms include:nReduced sense of understanding of the surroundings.nFeeling detached, numb, or emotionally unresponsive.nDepersonalization – your emotions or thoughts don't seem real.nDerealisation – your environment feels unreal or strange.nDissociative amnesia – you can't remember aspects of a traumatic event.nAvoidance symptoms: People with these symptoms avoid feelings, thoughts, places, or people associated with a traumatic event. Symptoms include:nAvoiding peoplenAvoiding placesnAvoiding conversationsnAvoiding certain activitiesnAvoiding feelings and thoughtsnArousal symptoms include insomnia, difficulty concentrating, sleep disturbances, physical and verbal aggression, and irritability. They may also feel tense and get startled easily. Symptoms include:nHaving trouble sleepingnHaving difficulty concentratingnBeing irritablenBeing constantly tensed or on guardnInability to sit still or stop movingnBeing startled easily or at inappropriate momentsnNegative mood: A person with A.S.D. may feel low or think negative thoughts. The symptoms may disrupt essential aspects of your life, such as your work or family. You may fail to start or complete essential tasks. You may also be unable to tell others about the traumatic event you went through.