My DS is a worrier and just turned 13. He has started refusing breakfast and doesn't seem particularly hungry at lunchtime either, he says he feels sick. Could be anxiety or teenage hormones I guess.but worried he is going to faint at school if he keeps this up, he doesn't drink much either. I've tried giving him food he is more likely to eat, like crisps in his lunch box, but does anyone have any tips or wise guidance? He does eat loads of stuff in the evening which is a relief, toast, breadsticks etc.