[STARLIT]

Unfortunately our cereal companies have gone to more wheat and possibly whole grains. I can't eat cereal any more without having a stomachache.

[hoosiermama]

Same here. Eating mainly oats if any grain at all.

[Jemian]

I can't eat cereal any more without having a stomachache.

That condition is called "wheat belly" and afflicts many people. I get bloated and uncomfortable. It also affects me in my wrists, shoulders, hips, and knees (isn't that a song?).