Irene occasionally experiences unpredictable episodes of intense dread accompanied by heart palpitations and a sensation of smothering. Since her symptoms have no apparent cause,they would probably be classified as indicative of

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Irene's symptoms closely match those of a panic attack, which can include intense feelings of fear, heart palpitations, and sensations of smothering or choking. Panic attacks often occur unexpectedly and can be debilitating for the individual experiencing them. Hypochondriasis and personality disorders do not typically manifest in this way, and while post-traumatic stress disorder can cause panic attacks, Irene's symptoms do not indicate a specific traumatic event as the cause.

Irene Occasionally Experiences Unpredictable Episodes of Intense Dread Accompanied by Heart