As much as you may want to be diagnosed, it's just not possible for anyone to be diagnosed over the internet. What I can suggest is that you use the Symptom Checker tool to look up any symptoms and then click on the various health centers related to digestive problems to find more articles. Stick around and the community members can help you answer your questions.
I also want to suggest that you see a doctor for help.
So where do you find these grains? They may be at your local grocery store but if you can't find them there, I would suggest trying an organic food store. That's also a good place to find premade packaged foods that are gluten-free but as with any food item; you do have to read the ingredient label.
Chef Domenica also has a recipe for Quick Quinoa Taboulito share with you in this blog.
Do you have some favorite recipes or cookbooks that you think others would like? Go ahead and share them here!