Based on the International Classification of Headache Disorders, there are two main types of headaches: primary and secondary headaches. Primary headaches are the most common and include the following subtypes: Tension-type headache: accounting for 69% of primary headaches. Migraine: representing 16% of primary headaches. Idiopathic stabbing headache: making up 2% of primary headaches. Exertional headache: … Continue Reading