I recommend watching this video where a doctor explains in simple terms how gluten can affect the body.
This is the link to a blog I began when I was just trying to figure this whole wheat-less life out. I rant and rave a bit here. But if you have been told or figured out this GF lifestyle is as well for you, I am sure you will no doubt go through some of the same emotions. I tell a bit about my past health issues but don't elaborate a lot as I have found a new life and have a new pain free body. That's my new story, and I''m sticking to it.