Headaches come in many forms, a dull throbbing ache to that splitting pain that is so severe you may need time away from work. Migraines are the most severe with vision being impaired, nausea & quite debilitating pain.
Common types are;
focused more around the centre of the face
a tightening around the head
located mostly around one eye
nausea, vomiting, visual "aura", pain is one sided