The holidays are right around the corner, which means family and friends will be cooking and baking traditional recipes all month long. These recipes are often the focal point of celebration, but they can also cause drowsiness, headaches and even cluster headaches. AZFoothills.com spoke with the senior medical director for Blue Cross Blue Shield of Arizona, Floyd Shewmake, M.D., to get a better understanding as to why the foods we love are causing us pain. Before you take a second bite of that scrumptious honey-baked ham or triple-chocolate cake, check out what Dr. Shewmake has to say about them.