Eric,
I can't comment on what is in this stuff, but I am glad you have found something that works for you.

I can totally relate to the fatique. For me the doctor's prescriptions was "get to the gym". Low testosterone level and all, it worked for me; but I was the only guy there with a PEG tube!

I was told the thyroid usually doesn't go haywire for at least a year and mine seems to still be holding its own.