Migraine is a sudden throbbing pain in one side of your head. It can causes a pulsing sensation and is often accompanied by nausea, vomiting, and extreme sensitivity to lights and sounds. Migraine attacks can last from certain hours to days and the pain can severe enough to interrupt your daily activities. Migraine actually causes electric nodes in the brain to behave differently. Some symptoms are fatigue, headaches, food cravings or loss of appetite, mood changes, severe thirst, etc.