"Some parents in the Barrie, Ont., area say their children are showing a host of symptoms ranging from headaches and dizziness to nausea and even racing heart r

"Some parents in the Barrie, Ont., area say their children are showing a host of symptoms ranging from headaches and dizziness to nausea and even racing heart rates." Maybe they're going through caffeine/sugar withdrawal away from home? I'd be interested to know what the rates of obesity are among these children and how much physical activity they get at school and at home. I don't think they should discount stress either -- from other kids, parents, etc.