Hi MigrainePosterChild. I am brand new to this site. Yours is the first post I've read, and I totally relate to your plight because it's almost identical to mine. Here's the brief version of my story and what has helped me. After being increasingly ill for about 15 years, to the point of severe gastritis, down to 92 pounds, and only able to eat a few veggies and rice for 2 1/2 years til the gastritis healed... blah, blah... I finally recently found a doctor who got me diagnosed. I have celiac, but the test/biopsies show negative or low likelihood of having it because my IaG is low - meaning I have a weak immune system. At any rate, as a result of being sick for so long, my cholesterol is through the roof, my liver enzymes are elevated, my blood calcium is high, and some other stuff. But I'm working on healing. Here is what I've done and has worked for me.
Here is the celiac diet you need to follow at least for now. Eat only meat, dairy, veggies, rice, and fruits. Avoid grains other than rice for now. I also can't eat oatmeal or oats of any kind. If you have trouble digesting meat, avoid it for now too. Eat as much as you want though. Also, if you're hungry a lot and not able to get enough calories through eating, drink Ensure for muscles. You can buy it in the grocery store. You need a lot of protein right now unless you're having kidney problems, then you need to ask your doctor about diet.
Here is the migraine treatment you need to follow for now. Avoid all alcohol, anything with vinegar or that has been fermented, like yogurt. Don't eat cheese of any kind. Don't use meat tenderizer or marinate meat. You want to avoid any food that has been "aged." Don't eat any produce with red or pink skin. It has an enzyme that sets off your migraines. Take 400 mg of B2 daily, and 400 mg of magnesium daily. It will help with the headaches and auras. Eat only canned or frozen produce. The "fresh" produce in stores is not fresh. It has been on trucks and shelves for a week or so and has started breaking down (meaning it is aging), so don't eat it. If you eat lunch meats, buy only the ones that have no nitrites or nitrates added to them. It will say so on the package.
Buy gluten free Rice Krispies, Rice Chex or Corn Chex for quick cereals. For soup, I buy packages of Thai Kitchen soups. They cook up in just a few minutes and taste good. I add meat or veggies to them. Keep some canned or cooked meat on hand for quick meals. I use canned veggies, so it just takes a minute or two to heat them up. Be sure the ingredient labels say just the veggies and water to avoid possible gluten contamination. I also use Betty Crocker gluten free instant potatoes to make mashed potatoes. I use gluten free Bisquick to make biscuits, pancakes, and also to make milk gravy, and recipes are on the box or you can find them on internet.
I've developed an allergy to eggs, so when I cook, I use unflavored gelatin in place of eggs. Two packets replace one egg.
Cooking: you don't have to know much. For one person only, buy 3 packages of hamburger, a beef roast, a pork roast, a turkey breast, 2 packages of chicken breasts and a ham. That will be enough meat to last you a month or two, depending on how much you eat. Buy some Pam non-stick spray. Buy a small roaster pan to cook with. Spray the pan with Pam, just a light coating. Turn oven to 300 degrees. Stick meat in the roaster, put the lid on it, put it in the oven. Let it cook for an hour or two, depending on the size. Check it to see how it's cooking. Then turn oven to 350 or 400 degrees to finish it off. When checking, cut into the meat in the middle to see how pink it is. I like meat well done, so I cook it longer on low heat to keep it moist and avoid it burning. If you like lean meat (more pink), you won't need to cook it as long. You'll just have to do it to learn it. But really, once you do it a couple of times, it's pretty easy. I use garlic, salt or Picante Sauce to season meat.
We also eat a lot of spaghetti. Buy the gluten free pasta and sauce. I use hamburger to roll meat balls and cook them in the sauce.
I used to shop a lot at Vitamin Cottage because that was the only place where I live that had gluten free foods, but now I'm finding things at a small local grocer we have here and also a few things at some of the large chain grocers, so it is getting easier to find products. I also get a lot of stuff on Amazon. Just search for "gluten free"
So, cook some meat, or open a can of meat, heat up a can or two of veggies and you have dinner.
You will learn to read labels carefully when you're grocery shopping, and before long, you'll spot ingredients on labels that you want to avoid and won't waste much time reading the labels.
Hope this helps!