Getting back to the bread...What makes bread rise? Maybe fungus is causing you to have problems with your gut. I know when I eat bread, or anything with yeast for that matter, I get tummy pains and bloating. Grains and peanuts are known to be commonly contaminated with mycotoxins (fungal poisons). If you are eating grains, peanuts or corn products(a grain)you are probably also ingesting fungi. Yeast makes bread rise, so it could be possible fungi or yeast overgrowth could be doing the same to you. Add antibiotics (fungal poisons)into the mix, and you could surely have fungal issues.