I read somewhere (references below), that most "gluten sensitivity" cases in the US is actually sensitivity to certain pesticides that are used in wheat farming. That's why most people who suffer from gluten sensitivity in the US do just fine when they eat bread in Europe. Have you considered moving to non-GMO certified organic wheat products and seen any difference in your health?
http://sustainablepulse.com/2014/02/19/roundup-linked-global...
http://www.alternet.org/food/meet-controversial-mit-scientis...
http://www.gmwatch.org/index.php/news/archive/2013/14764-com...
Here are some that refute the above: http://www.examiner.com/article/bogus-paper-on-roundup-satur...
http://www.huffingtonpost.com/tamar-haspel/condemning-monsan...
http://ultimateglutenfree.com/2014/02/does-glyphosate-cause-...