Here's a site that will have loads of info to research.
It has changed a lot since I was there last - and a lot of newsletters have been catalogued and added. Mr. Plesman (the author of many of these articles) also posts and answers questions here in CZ.
These webpages are full of really easy to undersatd information, the third link is to the articles list.
I hope you find some answers there, and if it is not what you are looking for I do wish you godspeed in finding what works best to bring you back to radiant health.
MadArt (ist)
*Almost afraid to post anymore - people seem to be getting really mad if the answers posted do not meet their expectations :)