A traumatic event is a shocking, scary, or dangerous experience that affects someone emotionally. These situations may be natural, like a tornado or earthquake. They can also be caused by other people, like a car accident, crime, or terror attack.
PTSD is a disorder that develops in some people who have experienced a shocking, scary, or dangerous event.
It is natural to feel afraid during and after a traumatic situation. Fear triggers many split-second changes in the body to help defend against danger or to avoid it. This “fight-or-flight” response is a typical reaction meant to protect a person from harm. Nearly everyone will experience a range of reactions after trauma, yet most people recover from initial symptoms naturally. Those who continue to experience problems may be diagnosed with PTSD. People who have PTSD may feel stressed or frightened even when they are not in danger.
Information above from the National Institute of Mental Health (Click here to read more on PTSD)