Monday "Did you know...?" Rootin' tootin'

lose the gluten.
Gluten is the protein found in wheat, rye, & barley...thus in cereals, breads, and even in other products (gluten can be used as a thickener for example in soups).
Gluten damages the lining of the small intestine in people with Celiac Disease. However it may be that even non-Celiac sufferers can feel similar symptoms from eating gluten. More here.

In general, trying to isolate food sensitivities is a good idea (whether it's gluten or whatever). Such isolation diets can help maximize your intake of nutrients and may help figure out why you feel physically or psychologically funky. Take a systematic approach. Read here about Uncovering Food Sensitivities.

Of course, never confuse this with professional advice, and always consult a nutritionist or physician on such matters.