Dear Youngman I would like to discuss in few words about headache before I try to answer your quiry. Headaches
basically are two types (1)Primary (2) Secondary. Primary headaches are (I) Migraine
(II) Tension headache
. Secondary headache are(a) Harmless eg pain comming from neck muscles, excessive intake of pain killer(b)Cause for concern when headache is of rapid onset and with neckstiffness tends to get worse quickly, with or with out high fever vomiting
and confusions, associated weakness of the limbs. I do not want to discuss the causes because these are irrelavant in your condition. In my opinion you are most likely is suffering from "Tension headache." I think it will settle and resolve itself in time. Kindest regards.