"A gluten-free diet is a diet completely free of gluten. Gluten is a protein found in wheat (including kamut and spelt), barley, rye, malts and triticale. Gluten is also used as a food additive in the form of a flavoring, stabilizing or thickening agent, often hidden under "dextrin". A gluten-free diet is the only medically accepted treatment for celiac disease, the related condition dermatitis herpetiformis, and wheat allergy.
Additionally, a gluten-free diet may exclude oats."
Try a 30-day gluten-free diet challenge, and see how you feel in a month. Who knows? You may experience increased energy, weight loss, etc., so give it a go.