I have know idea what specifically is wrong with him because he hasn't gone to the doc yet. But, we have seen some signs. First of all, he hardly eats dinner or lunch. He takes a small bite and leaves. Then we noticed he got stomach aches to often to be normal. Then, two days ago he woke up in his underwear. We did not know why, until my mom found this big brown chunk on a book. And no, it was not poo. It was puke. But it was so thick, we believe it was stuck in his esophagus and he had a case of the hiccups and it plopped out. I am So scared for him. Please give my advice about how I can help him.