I have bad headaches vomiting chills lightheadedness ?

How long. : These symptoms can have many explanations, all of which require a doctor's attention. The most common of course is a viral infection. If you have a fever or have been exposed to similar virus symptoms it's not so urgent. But if there no signs of infection you should see your doctor.

Migraines: You could have all the symptoms due to migraines. You could consult a neurologist or a headache specialist or a pain physician.