1500: Client reports an 'excruciating' headache directly behind his left eye. He says the pain is 'pulsating' and worse when lying down. He reports sensitivity to lights and sounds. He reports getting these headaches daily for the past two weeks at about the same time. He states that the headache lasts one to two hours. On assessment, the client appears in moderate distress; he is alert, oriented, and has tearing in his left eye. His gait was steady as he paced around the exam room because having him sit down to obtain vital signs increased his pain. Lung sounds are clear; peripheral pulses were 2+. Normoactive bowel sounds. He reports his pain rated 9/10 on the Numerical Rating Scale.