Chronic migraines are severely painful headaches that cause throbbing pain, nausea, vomiting, dizziness, and other symptoms like tingling sensations on the face or light sensitivity. Functional medicine doctors take a holistic approach to chronic migraines by looking beyond just symptoms to evaluate potential root causes like diet, stress levels, sleep quality, exercise habits, and relationships in order to treat issues on a cellular level and improve patients' overall well-being.