Headache that starts in the base of the skull, and feels like someone shot you with an arrow is due to some level of digestive stress such as constipation, sluggish or inflamed bowels, or even diarrhea, caused by consuming to many grains such as bread, rice, cereal, pasta, tortillas, and corn, are consuming dairy and having an allergy to it. When the digestive lining is irritated or inflamed do to the effects of these foods, or to common food allergies there is an immediate dilation effect in the arteries in you head allowing an influx of blood flow to the area creating the basilar headache. We need to teach you how to clean the bowels, thicken the lining of the bowels, which foods you should eat less or more of, or remove food allergies.