"This feeling will pass, the fear is real but the danger is not"
Some people who have experienced a shocking, scary, or dangerous event develop PTSD.
It is natural to feel afraid during and after a traumatic situation. The “fight-or-flight” response is a typical reaction meant to protect a person from harm and thus nearly everyone will experience a range of reactions after trauma. Most people recover from initial symptoms naturally but those who continue to experience problems may be diagnosed with PTSD and such people may feel stressed or frightened even when they are not in danger.