The core symptom of panic disorder is recurrent panic attacks, an overwhelming combination of physical and psychological distress. During an attack, several of these symptoms occur in combination: Panic Disorder Symptoms During an attack, several of these symptoms occur in combination Palpitations, pounding heart or rapid heart rateNumbness or tinglingSweatingChills or hot flashesTrembling or shakingNausea or abdominal painsFeeling of shortness of breath or smothering sensationsFeeling detachedChest painFear of losing controlFeeling dizzy, light-headed or faintFear of dyingFeeling of choking Because the symptoms can be quite severe, some people who experience a panic attack may believe they are having a heart attack or some other life-threatening illness. They may go to a hospital emergency department. Panic attacks may be expected, such as a response to a feared object, or unexpected, apparently occurring for no reason. The mean age for onset of panic disorder is 20-24. Panic attacks may occur with other mental disorders such as depression or PTSD.