My biggest meltdowns with my 9 yo pg son are when he isn't happy and not willing to compromise with the meal plan or the choice of healthy snacks....but he is crashing so he is completely unreasonable. And he is unreasonable about the very thing that will make him feel better. It is so much easier to plan his meals to prevent hypoglycemic problems than to fix them after they start...I also have a history with hypoglycemia so know what he is going through your brain just isn't working right. Most of the time my so is mature beyond his years....when this happens...I am reminded he is 9.