Celticgirl,
Everyone is different to a degree. It depends on your personal history.
My history was morbid obesity for most of my adult life. I have a family history of it on my father's side. I was prediabetic, I had a pulmomary embellism and was put on coumidan. I had acid reflux for almost 20 years, high blood pressure, etc.
My ability to lose weight went to a very slow crawl and finally when I did my last diet with Nutrisystem I actually gained weight after the first month. My body was rebelling.
My qualifications was to be at the minimum of 100 pounds overweight along with everthing I just mentioned.
The testing was fast and furious and I was afraid I would be turned down. But I did everything they asked me to do in record time. I was motivated and it showed. I think that showed when Aetna approved me so quickly.
It sounds like you are doing what you need to do. Don't despare. You will make the insurance approval. Have faith. When the doctors ask you to do testing jump on it and make the first available appointment. It all helps.
Let me know what happens.