Adolscent female became pale and confused after walking to the waiting area at the completion of vaccinations. Her mother reports She leaned back in her chair and became stiff, then her arms began to jerk for approximately 15 seconds. Nurse had her sit bent over with her head down over her knees, cold compress was applied to her neck and under her chin. She complained of a sharp headache across her forehead at a 10 on a 1-10 scale. Student remained pale and clammy for the next 10-15 minutes. Headache went to a 5 on 1-10 scale after five minutes. Observed a full 30 minutes more. Student began to feel better with some nausea and dull headache. Mother decline a ride to the emergency department. Hard candy was offered. Student left alert, oriented and ambulated out of the lobby with her parent. Follow up to the mother the following day and she reports that the student is doin fine now.