You may have an issue with complex sugars. We seem to as well.

The Specific Carbohydrate Diet reduces complex sugars almost completely and we find we do better when we stick closer to it... though most of the time we do not follow it on a strict basis.

However, the minute someone is not doing as well as they should, we get very strict about it.

See pecanbread.com for more info.
The book "Breaking the Vicious Cycle" by Elaine Gottschall is the book that the site is based on. It has helped people around the world to find health where they previously did not seem to be able to.