Migraine is a neurological condition characterized by recurrent episodes of severe headaches, often accompanied by nausea, vomiting, and sensitivity to light and sound. It can be triggered by various factors, including stress, hormonal changes, and certain foods. Cluster headaches, on the other hand, are excruciatingly painful headaches that occur in clusters of several attacks over a period of weeks or months, followed by a period of remission. They are often accompanied by symptoms such as tearing, redness of the eyes, and stuffy or runny nose.