 [ Symptoms ] ive been waking up with horrible headaches and a cold icy almost like a brain freeze [ Disease ] frontal headaches are usually caused by sinusitis or cluster headaches since you are hypertensive and there is a family history if brain aneurysm then you might be in risk of having it cervical vertebrae problems can cause double vision and headache due to vascular insufficient vertebri basilar artries in a case called vbi well i recommend a duplex scan for your posterior neck veins and a dye mri of brain blood vessels