A headache is any pressure or pain in your head, ranging from mild to severe. Most headaches aren\u2019t the result of a serious illness. Common factors include stress, lack of sleep, exposure to substances such as alcohol, and more.\nFrequent headaches, however, can affect your overall quality of life. Sometimes it\u2019s difficult to discern the difference from a headache and a migraine. Migraines are intense headaches that often come with additional symptoms, such as nausea, sensitivity to light and sound, and seeing spots or flashing lights.\nLearn more about headaches and migraines and how to find the relief you need.