Dd1 (7) keeps complaining of tummy ache when eating, its happened 3 or 4 times in the past 2 weeks. Tonight she had her favorite (pizza) and would'nt eat it because her tummy was hurting but an hour later she managed to eat some cake. She had a tummy bug 2 weeks ago (just a 24 hour bug/was sick once) but appart from that she seems well. What could it be?