What Does Headaches On Waking Up Suggest?

In the mornings I wake up with a headache, 7 days in roll, I drink a little coffee and it subsides sometimes....today I drank some mid-afternoon and starting seeing aura's on both sides of my face...I wentfor CT scan and doctor says everything is normal....my doctor gave me pain pills for migraine even though I've never had migrain's before....I'm 61....