For the last three-four days, our son (7 years old) tends to feel sick after he eats lunch - naseau, cramps, and sometime diarrhea. It seems to go away, but it s pretty bad for an hour or two. He doesn t seem to have any other cold/fever, just upset stomach. He feels like he is either going to throw up or it just hurts. We have been trying to get him to wash hands after the bathroom - and he is in a kids-after school program with a lot of children. He has been putting his fingers in his mouth more and more lately as he is losing his baby teeth.