The best way to make decisions about what to do is to be as informed as possible.
If you decide to chelate, definitely follow Andy Cutler’s protocol. It’s definitely the safest and most effective method out there. Here’s links to his two books:
Hair Test Interpretation
This website is also extremely informative when it comes to AC chelation: http://www.livingnetwork.co.za/chelationnetwork/chelation-the-andy-cutler-protocol/
I also highly recommend reading Amy Yasko’s books to get a broader view on the situation. Amy Yasko’s Pathways to Recovery is free and online: http://www.dramyyasko.com/wp-content/files_flutter/1327512160_9_1_1_8_pdf_02_file.pdf
Check out this great introductory series about methylation: http://www.youtube.com/watch?v=o4uqEDK6BvM
My dietary advice for you is to try to pinpoint what foods you react to and then avoid those foods. An elimination diet is good for this.