I looked up elimination diet to see how to go about it and there are so many different ways. How would you go about it?
There are so many different ways to do this. I tried the FODMAPS elimination diet because I suspected I had problems with fructose. Here's a website: http://www.ibsfree.net She has a book that was a good starting point for me. (Note, it's not a gluten-free diet, so make sure you adjust accordingly). Found out I can't handle fructose, dairy, mannitol, sorbitol, and brown rice as well as gluten. Fun, huh? Took about a month or so on the diet before I had good days.
An elimination diet is a slow, slow process. And frustrating. It is worth it once you find out a basic diet that doesn't bother you. I was down to 17 foods I knew were safe at one point (and several were variations of corn flour products). It's much better now for me, but it took awhile to get there.