According to John Hopkins Medicine; Headache is pain or discomfort in the head or face. It vary greatly in terms of the location and intensity of the pain, and how often the headaches occur. Types of headache may include: Migraine, Cluster Headache and Tension Headache. Although most headaches are not life threatening and cannot be identified from a brain scan or blood test, we take them seriously. Headaches may cause substantial discomfort, and may severely affect an indivi