my 12yr old son has had abdominal pain at belly button and when doctor pushes down on it towards right side it is painful and not towards left side. doctor took blood and normal except low iron and urine good er doctor thought unusal but did not think it could be appendix so did not do catscan! My son wakes up in morning so tired and stomach aches I do not know what to do and he has missed 6 days of school!