Which of the following symptoms is NOT part of the diagnosis for Generalized Anxiety Disorder (GAD)?

In the context of Generalized Anxiety Disorder (GAD), the criteria for diagnosis include a range of symptoms that reflect excessive anxiety and worry occurring more days than not for at least six months. The symptoms typically associated with GAD include restlessness, being easily fatigued, difficulty concentrating, irritability, muscle tension, and sleep disturbances.

The symptom of inability to recall an event does not align with the primary symptoms recognized in GAD. Recall issues may be associated with other conditions, such as trauma-related disorders or cognitive impairments, but they are not a standard symptom or requirement for diagnosing GAD.

In contrast, restlessness or hypervigilance, sleep disturbances, and irritability are all valid symptoms reflecting the pervasive anxiety that characterizes GAD. Therefore, the identified symptom of inability to recall an event is correctly noted as not being part of the diagnostic criteria for Generalized Anxiety Disorder.