I think belly issues are so common that they are bound to show up in any group. I imagine the large amount of processed foods and high sugar foods does not help the situation (and trust me, I wish I had the discpline to act more upon that fact than I do).
That being said, I was a 'somaticizing' kid who felt every bellyache, splinter and mosquito bite with great intensity. I suspect that I was waaaaay too in tune with my body, and have had to learn to reassign a lot of those aches as within the realm of normal. My neice had the same issue and was labeled 'overdramatic'. Of course, I was also a kid of divorce with a lot of stress. Thus far, my kids don't seem to be nearly as sensitive as I was (and still am...the belly stuff continues, grrrr).
