I've been increasingly concerned at how little my 9yr old ds is eating. Yesterday we went to a swimming party and my sister was shocked at how thin ds has become. I weighed him and measured him this morning and have just calculated his BMI which is 12.7 which puts him under the 1st centile on the BMI charts. His appetite is tiny and he eats incredibly slowly and I@m now feeling guilty that he's so ludicrously skinny