Donna, are you having any symptoms of low thyroid? I have been on thyroid supplements for years, and never found that it helped me to lose weight, except for it helping to have the energy to do what needed to be done to lose weight.
You got me interested in the saliva testing. I found this web site that offer to sell you a saliva test http://www.canaryclub.org/
offers a complete saliva test for 199$
I am interested in the metabolism book, since from everything I've read I feel that my body tends to try to compensate by lowering my metabolism to meet the incoming calories rather than give up the fat. So I would like to get my hands on this book.