what causes headaches in morning
5. Some women can experience how their pregnancy can cause them to wake up with pain each morning. One possible reason for this type of headache, according to research, is the increased blood volume and blood circulation in your body.
Introduction. Sinus headaches cause a dull, deep, throbbing pain in the front of your head and face. They are caused by an inflammation in your sinuses, air-filled cavities around your nose, eyes, and cheeks. Bending down or leaning over usually makes the pain worse, as does cold and damp weather. Sinus headaches often begin first thing in the morning, and may be better by afternoon.