If I am understanding you, I have backhead headaches, which might be what you describe, but I don't really feel so much hot as a headache confined to the backhead. Perhaps this will help. My nutritionist recommended eating high potassium foods. Headaches in the back of the head are indicative of potassium hunger. Some of the most common potassium foods are almonds, apples, bananas, broccoli, carrots, cucumber, grapes, pecans, raisins, spinach, sunflower seeds, tomatoes, walnuts. This is only a partial list. If you want, I can send you the complete list that I have. If I include a couple of these foods in my supper, I do not have the headache at bedtime nor do I wake with it. HTH, C.