What type of headache is classified by unilateral pulsating, throbbing pain that can last from hours to days?

A. Sinus: Sinus headaches are typically associated with facial pain, pressure around the eyes, cheeks, or forehead, and are often accompanied by nasal congestion or discharge. They are usually bilateral and worsen with bending forward, rather than presenting as unilateral throbbing pain. B. Migraine: Migraines are characterized by unilateral, pulsating, or throbbing pain that can last from hours to several days. They are often accompanied by nausea, vomiting, photophobia, or phonophobia, and may be triggered by stress, certain foods, or hormonal changes. C. Aggravating: “Aggravating” is not a type of headache; it describes factors that can worsen headache pain rather than a classification. It does not provide information about duration, location, or quality of the pain. D. Tension: Tension-type headaches usually present as bilateral, pressing, or tightening pain of mild to moderate intensity. They are not pulsating and do not last as long as migraines, and they are rarely accompanied by nausea or sensory sensitivity.