An abrupt surge of intense fear or intense discomfort that reaches a peak within minutes, accompanied by a constellation of physical and/or cognitive symptoms. These symptoms can include palpitations, accelerated heart rate, sweating, trembling or shaking, sensations of shortness of breath or smothering, feelings of choking, chest pain or discomfort, nausea or abdominal distress, feeling dizzy, unsteady, light-headed, or faint, derealization (feelings of unreality) or depersonalization (being detached from oneself), fear of losing control or going crazy, and fear of dying. For example, an individual might experience a sudden onset of overwhelming anxiety, coupled with a racing heart and difficulty breathing, during a routine task such as grocery shopping, leading them to believe they are having a heart attack.
Understanding this phenomenon is crucial within the field of psychological study for several reasons. It provides a framework for diagnosing and treating related anxiety disorders, improves differential diagnosis by helping professionals distinguish it from other conditions with similar presentations, and facilitates effective therapeutic interventions aimed at reducing the frequency and intensity of such episodes. Historically, its identification as a distinct psychological entity has significantly improved the quality of life for those affected, leading to targeted treatments and destigmatization.