Such pain is known as a headache. In each of the three people, the cause of the headache was different.
On this day, however, each one used a different treatment that either reduced the pain or ended it.
People who get migraine headaches get them repeatedly -- month after month, year after year. Some of them say they have difficulty seeing before the severe pain begins. Others cannot see at all when the headaches begin. Some may have difficulty thinking. Others see strange lights in front of their eyes. Many have upset stomachs and cannot keep food down.