If you experience hypervigilance, it might be hard to concentrate or an unexpected movement can startle you. Hypervigilance may also make you irritable at times or find crowded spaces overstimulating.
Hypervigilance is a heightened awareness of your surroundings, on high alert in order to sense danger.
Hypervigilance is a common symptom of PTSD along with other mental health conditions where your fear response is turned up, like anxiety disorders.