Thank you John and to the others who offered advice. I guess that the answer is to keep calm and carry on.
Without self testing I am very much in the dark so that should be a priority, I will lake an effort to read as much as possible ( thanks for the link) and press ahead with the diet. I too have an occasional cookie and have yet to convince myself that this will put me on the slippery slope. Otherwise our diet seems very good to me.
I will watch out for further advice.