Having severe headaches due to exposure to the sun is basically a symptom of migraine. People who have migraine problems cannot tolerate sun and light. Pain and nausea with pain on one side of the head is also called migraine. Inflammation of the nerve cells causes migraine Pain on one side and that lasts for a few hours Again, many times it gradually increased and lasted for three days Doctors say that the main reason is the disruption of the control process in the hypothalamus part of the brain. In this case, calcium and epilepsy drugs may be useful In addition, regular exercise , yoga , can be done It is necessary to keep an eye on whether there is high blood pressure Moreover, different medicines can be taken for nausea Thanks