Migraine is a type of headache that is often localized in a certain area of the head and is sometimes accompanied by a pronounced sensitivity to light and sound. Other common migraine symptoms include nausea and vomiting. Migraines are usually gradual in onset, progressively more painful and then undergo a gradual resolution. When migraines are mild to moderate, they are usually described as being dull, deep and steady. When severe, migraines are throbbing or pulsating.