2.2.1 Frequent episodic tension-type headache associated with pericranial tenderness

The patient reports headache episodes with an average frequency of 10 to 15 days per month, lasting 4 to 12 hours. She describes the pain as bilateral, 'band-like' or 'pressure', with mild to moderate intensity (visual analog scale of 5/10), non-pulsatile, not worsened by routine physical activities, and without nausea or vomiting. She mentions mild photophobia during episodes, but no phonophobia. Associated with the headache, the patient complains of pericranial tenderness on palpation, bilaterally. She reports that work-related stress and poor posture while grading exams seem to exacerbate the symptoms. There is no history of recent head trauma or associated infections.