My son had weekly episodes of explosive D after being GF for 3 years. He was found to have elevated eosinophils in his blood and colon. We did IgG based delayed food allergy testing and learned he had stong reactions to many other foods (dairy, egg, soy, legumes, citrus...). After getting those results and rechecking his food diary (which made no sense while we kept it) we were able to see the cause of his seemingly random nights sleeping in the bathroom. Shortly afterwards we met with a great nutritionist. She said we were on the right track and that Eric would get better using our approach but that we could speed up the healing by adding digestive enzymes and probiotics. She feels that at some point we might be able to add everything but gluten back into his diet. Eric occasionally has a set back but we are able to figure out why now. Before he was reacting to too many foods for us to see a pattern.
Here is a link to an interesting site about enzymes http://www.enzymestuff.com/

--Judy