Have any of you read this book? I heard about it and did an internet search and it said anyone who had been diagnosed with Fibro of CFS should read this book. I have it ordered but my daughter received a couple of pages from her PT and it mentioned the 17-beta estradiol - stated that not many doctors test for this. I will keep you posted as I read this and/or how her GYN physician responds to the request to have this checked. Hope you are having a "not too bad" day.