Symptoms can vary, but common symptoms are lack of sleep, usually less than 5-6 hours for a period of time. This is usually coupled with nightmares, anxiety, panic attacks, irritability, and other signs. The good news is that this is all reversible.
Post-traumatic stress disorder (PTSD) is a mental health condition that's triggered by a terrifying event — either experiencing it or witnessing it. Symptoms may include flashbacks, nightmares and severe anxiety, as well as uncontrollable thoughts about the event.
For people with PTSD, it is very common for their memories to be triggered by sights, sounds, smells or even feelings that they experience. These triggers can bring back memories of the trauma and cause intense emotional and physical reactions, such as raised heart rate, sweating and muscle tension.