Sinus headaches are characterized by pain and pressure in the forehead, cheeks, and behind the eyes. This discomfort often occurs when the sinus passages become inflamed, leading to a buildup of pressure. The pain may be dull or throbbing and often worsens with head movement or straining. Accompanying symptoms can include nasal congestion and fatigue. The sensation is typically localized to the areas around the sinuses and can be persistent or intermittent.