Usually I have cereal and yogurt for breakfast. Twice in the last two weeks I've had an especially sugary breakfast, then got a migraine by mid-morning. I mentioned this to a dietician friend and she confirmed that sugar is often a trigger, especially for people who are on the cusp of a migraine, as I perpetually am. It's not good to get a migraine, but it is good to learn more triggers. Unfortunately I will have to rein in my sweet tooth.