Do the stewed apples first for 21 days or longer and EAT ORGANIC.
Try everything else after your gut has stabilized. Tests can be wrong. Your symptoms are the real data. For info on how organic diets have healed many, see the website, MomsAcrossAmerica.com. See also the Institute for Responsible Technology. They have a trailer for their new movie about how an organic diet heals.
Once you are done with the stewed apples and have been on a total organic diet for 3 weeks, You can also look into taking some cow's colostrum. Here's a quote from a book I just read. "The germs of most mammals digestive tracts are similar, so the colostrum harvested from cows can be used to help the human intestinal tract accept good germs and reject the bad ones. This function is of value to adults whose intestinal germ population has gotten out of balance after Antibiotic treatment." Sidney Baker, MD from his book Detoxification and Healing.