Which headache type is characterized by recurrent unilateral, pulsating pain often accompanied by nausea?

The type of headache characterized by recurrent unilateral, pulsating pain often accompanied by nausea is a migraine, particularly with aura. Migraines are known for their debilitating nature and can significantly affect an individual's ability to function during an episode. They typically occur in one hemisphere of the head and are often described as throbbing or pulsating.

In addition to the characteristic pain, migraines are commonly associated with a variety of symptoms, including nausea and vomiting, as well as sensitivity to light and sound. The term "aura" refers to specific neurological symptoms that can precede or accompany the headache, such as visual disturbances, which further define this condition.

While cluster headaches can also be unilateral and are severe, they have distinct features different from migraines, such as being more abrupt in onset and associated with autonomic symptoms. Tension-type headaches generally present as a steady, non-pulsating pain and do not feature the nausea commonly associated with migraines. Increased intracranial pressure is a serious condition that can cause headaches, but its nature is more diffuse and often accompanied by other neurological symptoms, rather than the unilateral pulsating pain typical of migraines.