Wheat Intolerance/sensitivity?

[xjess 0]

Hi, I've been having stomach/bowel problems for months now which my doctor seem to think is IBS-C. I've had blood tests, ultra sound scans of my stomach and urine/stool tests and nothing has shown up apart from a tiny gallstone. I've had a celiac screening test and that came back negative and I've just finished around a two month period on the FODMAP diet. I've recently started re-introducing foods. I've tried Weetabix - which I've been fine with so far and I've had no symptoms yet but whenever I've tried bread, I bloat! Is it possible that I do have some sort of wheat intolerance even though I'm fine with Weetabix? And are there any wheat intolerance tests available or are they just a waste of time because they aren't 100% accurate? Thanks 

[cyclinglady 1,476]

That cereal has just wheat, barley extract, sugar and some vitamins. Besides wheat, oil, salt and possibly eggs, bread contains yeast and other ingredients to make it shelf stable. I would suspect yeast or one of the other ingredients over gluten.