What is the likely diagnosis?
A 27-year-old woman presents to her GP with a history of a severe headache. She reports that these headaches have occurred 4 times in the last 3 months and have been predominantly left -sided and associated with visual disturbance and vomiting. They last several hours at a time and are so severe she has been unable to go to work. She reports that she is able to predict when she will get one of these headaches as the day before she is off her food, nauseated and the visual disturbances, which are flashing lights across her field of vision, begin.
A. Epilepsy B. Temporal arteritis C. Space-occupying lesion D. Migraine E. Cluster headache