My daughter has always been a light eater, however, lately it has become more and more worriesome. She is eating less than 5 bites of food a day. We offer her just about whatever she wants as long as it isn't sugar or junk / candy or chips. And when she does finally tell us what she wants, she will take one bite and then tell us her tummy hurts and refuses to eat any further. She has been extremely tired lately also, maybe because she isn't eating enough?! We do push the fluids, especially water, since she has spent days in the hospital for dehydration. I have taken her to the doctors and the only thing they've told us is that she has severe allergies and takes Zyrtec daily. What do I do next??