question: Hi Dr. Grief, every so often I get a pain in my upper right part of my back leading up to my neck and head around to my forehead. When I get this pain, I feel the urge to stretch out the muscles in my back and neck really bad, sometimes until my ears pop. When I get this pain, I also feel the urge to eat something really sweet in large quantities. Can you tell me what is occurring and why? Thank you!!