Sudden, overwhelming anxiety of such intensity that it produces terror and physiological changes.
A severe personality disorganization involving intense anxiety and usually paralyzing immobility or blind flight, panic disorder.
A feeling of great fear which cannot be stopped and which sometimes results in irrational behaviour.
Intense, overwhelming fear, producing terror, physiological changes, and often immobility or hysterical behavior.
Acute anxiety, terror, or fright that is usually of sudden onset and may be uncontrollable.