According to the experts at the U.S. Department of Veteran Affairs, Posttraumatic Stress Disorder (PTSD) is an anxiety disorder that can occur after you have been through a traumatic event. A traumatic event is something horrible and scary that you see or that happens to you. During this type of event, you think that your life or others' lives are in danger. You may feel afraid or feel that you have no control over what is happening.  The VA also states that anyone who has gone through a life-threatening event can develop PTSD. These events can include: Combat or military exposure, Child sexual or physical abuse, Terrorist attacks, Sexual or physical assault, Serious accidents, such as a car wreck. Or Natural disasters, such as a fire, tornado, hurricane, flood, or earthquake.  How do you know you might have PTSD?  After the event, you may feel scared, confused, and angry. If these feelings don't go away or they get worse, you may have PTSD. These symptoms may disrupt your life, making it hard to continue with your daily activities.