constant pain at base of skullsudden pain at base of skullheadache pain at base of skullsevere pain at base of skullthrobbing pain at base of skullchronic pain at base of skullpain at base of skull and dizzinessintense pain at base of skullstabbing pain at base of skullmuscle pain at base of skullpain in back of head at base of skullbase of skull sore to touch