You need to be revaluated not for the cyst but if the cyst has undergone any change / increase in the size or hemorrhage in the recent past to cause these continuous headaches, any tumors stretching the pain sensitive dura, impending rupture or ruptured aneurysm, change of
medicines for
migraine, trial of otherpreventive
medicines lie topamax, other drugs used to abort a migraine attack in triptans and ergots group. Rule out tension headaches by stress relieving measures and behavioral therapy.