Which of the following is NOT a symptom of pneumothorax?

Pneumothorax, commonly referred to as a collapsed lung, is characterized by symptoms that primarily affect the respiratory system and the chest. The symptoms often include sudden sharp chest pain, which is frequently localized and may worsen with breathing or movement. Labored breathing, or dyspnea, is another significant symptom as the presence of air in the pleural space impairs the lung's ability to expand and fill with air, leading to shortness of breath.

While anxiety can occur in response to the distress caused by respiratory distress, it is not a direct symptom of pneumothorax itself. The primary indicators are more physically centered on the airway and breathing mechanics. In contrast, a headache does not typically correlate with pneumothorax; rather, it's a symptom more commonly associated with other conditions or situations.

Understanding pneumothorax symptoms helps in timely identification and treatment, which is crucial for preventing complications associated with this condition.