Intravenous Fluids in Pediatric Migraine

Patients will be randomized to one of two treatment groups. The intervention group will receive a 20 mL/kg bolus of normal saline (with a maximum of 1L), given over one hour. The control group will receive normal saline at half maintenance (with a maximum of 50mL/hr) over one hour. Both groups will receive: * ketoralac (Toradol), 0.5mg/kg, with a maximum of 30mg * diphenhydramine(Benadryl), 0.5mg/kg, with a maximum of 25mg * prochlorperazine(Compazine), 0.15mg/kg, with a maximum of 10mg Pain score, heart rate, and blood pressure will be monitored every 30 minutes from the start of the medications/fluids being started, for a period of two hours. Pain will be recorded using a 100mm visual analog scale.