This information is from a presentation by Dr Carole Spencer, who is a past president of the American Thyroid Association. It contains a number of observations, which should ring true with many, many thyroid patients.
I credit PR4NOW from the Thyroid UK Health Unlocked forum for bringing this to my attention. Thank you!!!
The presentation contains two links. One is a presentation PDF and the second is a slide notes PDF.
It is suggested that they are both loaded up side by side on your computer screen and read together.