Severe Headache with High Blood Pressure

William is a 62-year-old male presenting with severe headache with bp 210/120 at pharmacy. 62-year-old male presents with severe headache that started 2 hours ago. He checked his blood pressure at a pharmacy machine which read 210/120. He has a history of hypertension but admits to running out of medications 2 weeks ago and not refilling them. Your task is to take a focused history from this patient.