2 questions
Dr. B's nutritionist will give you the "diet". You should follow this to get used to doing it after the surgery. The major thing is to not gain any weight before the surgery or he will cancel on you. The reason being is weight gain shows a lack of commitment to this total lifestyle change and you are not ready for it just yet if you can't lose any weight. I like that level of commitment from my MD. It shows money isn't the motivating factor for them. Regarding your insurance approval, I have BCBS State and it took two days! Hang in there.