If you have celiac or gluten intolerance, you will start to feel better almost right away, but it can take 2 or 3 years for your body to heal completely, if it will depending on age and level of damage and compliance to the diet. Until then you won't feel 100%. I'm just now starting to feel more energy and less day to day struggle and I've been at it for 2 and half years. You MUST be VERY careful not to ingest even a crumb of gluten in order for you to be able to tell if it makes a difference.
As to grains etc., I've seen that Nuts Online carries certified millet and quinoa and oats. It's mail order but the prices look good. I may try some myself. www.nuts.com
. Try to ignore the tempting troublesome nuts, dried fruit, candy etc. It gets easier. Use your computer and look companies up, send emails etc. Most places are very happy to help out. The gluten intolerance group has a great website with long lists of certified companies. RESEARCH is key!