Do you experience pain on just one side of your head? Do you feel nauseous whenever you have a headache? Do not rule it out as just another headache. It could be symptoms of migraine. Migraine headache is caused due to some complex changes within the brain. The chemical changes lead to a throbbing pain sensation on one or both sides of the head followed by other symptoms such as nausea, vomiting, light, sound and touch sensitivity.