With my girls they love school so it's hard to keep them home, even on snow days. But my rule is - if they don't have a fever or throwing up, they go to school. I know it's harder since your son is older and bigger than you lol. Tell him from now on - no staying home unless there fever or throwing up. Make sure he's not staying up too late - he might be too tired and giving the excuse of being sick. You have my sympathy ((SS)) it's certainly not easy raising kids. Hang in there.