question: Hello doctor, What is wrong with a junior school child who has diarrhea and either stopped drinking or is unable to. He has eyesight weakness and now wears glasses. He worries a lot and despite a good appetite does not put on weight. Has difficulty in reading and writing. He has no power, strength or stamina. Thyroid tests are all normal. Has he some other congenital disorder? Because there is definitely something wrong and we are guilty of not observing him fully and properly.