My son is 10. He is a little on the heavy side about 10-15lbs overweight. Lately he has had some stomach issues. He keeps complaining of stabbing pains all across the top of his stomach that make him double over. I was thinking gas so I got him a gas relief tablet, which didnot help. He woke up this morning with nausea and terrible diarrhea. I dont know if food poisoning, ibs or gall bladder? It seems to happen more often after fatty foods. Which I have been trying to back away from.