The first signs of a migraine headache may develop a day or two before the actual migraine sets in. These symptoms can include mood swings, food cravings, constipation, thirst and a need to urinate frequently. This can be followed by changes in vision, where some people may see spots of flashing lights, others may lose part of their vision. Some people experience ringing in their ears and others a tingling sensation in their lips or fingers. This is followed by a severe throbbing headache that effects one side of the head and can worsen over several hours. During this time sensitivity to light is common. Some people will experience nausea and even vomiting during their migraine. Following the migraine headache, some people can feel confused and tired as they recover from the episode.