There are many types of headaches. Although not all headaches are the same, they have at least one thing in common: pain. But many headaches also cause other unwanted symptoms, including nausea and vomiting.
Migraines:
If you feel throbbing that begins on one side of your head and causes nausea or makes you sensitive to sound and light, you may have a migraine.
Symptoms vary from person to person and from episode to episode. Different phases can often be identified:
Prodrome: You may have a variety of warnings before a migraine. These include a change in mood (for example, feeling "high," cranky, or depressed) or a subtle change of sensation (such as noticing a funny taste or smell). Fatigue and muscle tension are also common. Some people have food cravings, constipation, or yawning.
Aura: This is usually a visual disturbance. Some people who have migraine get blind spots (called scotomas); see geometric patterns or flashing, colorful lights; or lose vision on one side (hemianopsia).
Courtesy: Webmd