Every adult has experienced a headache at some point. However, headaches vary greatly in frequency and severity. Most people can self-diagnose their own headaches and often turn to over-the-counter medications to help relieve the pain. However, doctors do not have any set of tests to diagnose headache types and causes. Instead, they mostly rely on the description that patients give them, and typically, the descriptions of the symptoms of headache pains vary wildly.

While most of us have suffered from a headache at one time or another, all headaches differ in severity as well as what brings them on. There are hundreds of different reasons for what causes a headache, including the more serious ones involving medical ailments such as brain tumors and aneurysms. Most of us only suffer from common headaches that while annoying and painful, these common headaches can be treated effectively with over-the-counter medications.