Different Presentations of Headaches
The term headache refers to a number of different presentations of discomfort or pain in the head. Headaches may be unilateral (one sided) or bilateral (both sides). The duration and onset may be intermittent, episodic or constant. There are acute types of headaches which come on suddenly and often eases just as rapidly, and chronic headaches which may come on and persist for days or weeks or return frequently at the same spot.
Sometimes concomitant symptoms like nausea, vomiting, nasal congestion, watery eyes, eye pain, dizziness and even jaw or ear pain may be present. Headaches are not as well understood as one may think. There are some types of headaches with definitive causes, while with other types of headaches there may be several hypotheses as to the cause based on known risk factors.