Sweeteners symptoms and conditions

I am not on synthroid, but also feel tired all the time with brain fog. I was actually thinking about getting my thyroid checked. I just read a wonderful book called "Breakthrough" and will be going to one of the recommended doctor's in the book. All of everybody's symptoms, including mine, sounds like the result of out of whack hormones---estrogen, progesterone, testosterone, cortisol, etc.(guys, you too) You might want to go to a doctor that deals with bio-identical hormone replacement---not your OB/GYN. They also have a better thyroid hormone replacement---a natural one made from, um, here it comes--pig--which is supposedly better than the synthetic stuff everyone is taking. Also, every single doctor interviewed in the book raved about the fact that diet sodas are poison--the artificial sweeteners are killing us--so if you're downing those, you might want to stop for a while to see if you feel better. Good luck and God bless you all---hope this helps you and I hope the doctor that I'm going to see helps me...I really recommend reading that book---there is a wealth of info in there. Some things I questioned but most things really made sense.