I would avoid wheat entirely, it's pro-inflammatory. Brown rice, teff, quinoa, tons of good grains out there to eat, and yes, whole grains are the way to go, they have the fiber still on them which helps with IBS. I wouldn't take medication for IBS since it tends to repress acid, but your stomach just makes more in order to digest protein. Try drinking a few ounces of aloe juice every day and take digestive enzymes. If you crave meat, eat it, but only naturally raised.