when I first started this, the woman told me I have a thyroid issue, but they wont find it on TSH, it would be either the Free T3 or the Free T4. I had bloods pulled before I started suppliments. I got a call today that my Free T 4 is off. They wanted me to come back in and have it redrawn. So, a poking we went. Im such a tough stick and its horrible to be poked over and over. The bloods are off to the lab, and I warned them im on suppliments.