I want to thank everyone who has posted on this topic for their comments and suggestions. As suggested, a couple of weeks ago I adopted a dairy free protocol and was already to declare "mission accomplished" .......until today !! There definitely seemed to be an improvement in the number of D days, but then "wham" again today. So, guess I'll have to be even more vigilant about the Gluten content of foods eaten in tiny amounts and try to sort out what's causing the problem. It sure doesn't help that the reaction time (as reported here) seems to vary substantially (maybe even on a personal basis).
I'm also wondering if anyone else has had any experience with proton pump inhibitors. I've been on one for about 2 years, roughly the same length of time I've had "D" issues. Maybe I should start a new topic about this.