As if I needed another reason to drink coffee.
It’s ok, me too. At home I’m a 4-6 cup a day drinker. On the go 2-3 Starbucks. I have a serious problem.
The explanation for the headaches is that coffee raises blood pressure short term, and the blood vessels in the brain prepare for the predicted caffeine ingestion, and if it doesn't come there will be a mismatch.