headaches, migraines, pain, dull, throbbing, both sides of head, tension/stress, dehydration, lack of sleep, medications/foods, underlying medical condition, over-the-counter medications (ibuprofen/acetaminophen), more intense than regular headaches, visual aura (seeing spots/flashing lights), nausea/vomiting/sensitivity to light/sound; migraine triggers (foods/stress levels/hormones); environmental factors (bright lights/strong smells); prescription medication; chronic migraine.,