HEADACHES ARE very common, everyone experiences them. There are two broad categories:Primary, in which headache and its associated features are the disease in themselves,and secondary, those caused exogenously, such as headache associated with fever.Primary headache disorders: ? Migraine? Migraine without aura? Migraine with aura? Tension-type headache? Cluster headacheSecondary headache disorders: Headache attributed to:? Head and neck trauma? Cranial...