There are two main categories of headache pain that you should be aware of.
Primary Headaches – These are the headaches most of us experience on a day-to-day basis. They are called primary headaches because the pain is not a symptom of another physical disorder. Ironically, they are often called “benign” headaches, although headache sufferers would classify them as anything but benign.
Secondary Headaches – This category of headache includes any headache that is the symptom of another physical disease or disorder. Secondary headaches can be caused by such frightening diseases as aneurysms, blood clots, infections, tumors or a high fever, as well as others.