Symptoms of a Cluster Headache

Cluster headaches are relatively rare, but people who suffer from them can tell you that they are the most painful type of headache you will ever experience. Approximately 10% of the population is affected by migraines, but less than one-third of 1% of these people have experienced the symptoms of a cluster headache. Migraine headaches can be rather painful, but the pain brought on by migraines cannot hold a stick to the pain caused by a cluster headache. Very few people suffer from cluster headaches, less than 1% of the population actually.