Post-traumatic stress disorder (PTSD) can develop in some people who have seen or lived through a shocking, scary, or dangerous event.   

Those who have experienced or witnessed a terrorist attack may feel one or all of these symptoms:

• Recurring thoughts of the incident.
• Becoming afraid of everything, not leaving the house or isolating yourself.
• Stopping usual functioning, no longer maintaining daily routines.
• Survivor guilt — “Why did I survive? I should have done something more.”
• Tremendous sense of loss.
• Reluctance to express your feelings, losing a sense of control over your life.

(From Managing Traumatic Stress:  Coping with Terrorism-American Psychological Association)

Those who have not been affected directly by a terrorist attack could have some similar symptoms, if they too have experienced significant trauma in their life.  Practice self-care.  Are you viewing an excessive amount of media coverage regarding the Orlando terrorist attack?