Do an experiement - drop wheat, flour and dairy from your diet for 2 weeks and take note as to how you feel and report back.
I agree. Drop wheat, flour dairy and soy. Most people have these food allergies. If you want to know which one is bothering, drop them one at a time. I'd drop them all, and if you feel better, then don't have them. Processed foods is not good for your system anyway.