14. Easily Startled
This one is closely related to hypervigilance because it has to do with them being on edge and alert. While people with PTSD will protect themselves by making sure they are always ready to respond, they can still be easily startled. Health.com writes that they will likely have an exaggerated response when they are surprised or startled, especially if it reminds them of their original trauma.
“Somebody comes up close behind you and you jump a mile,” says Dr. Nitschke to Health.com. “Before the trauma, you wouldn’t have. Hyperarousal can interfere with sleep and concentration, and it may also come out as outbursts of anger.”