http://www.womentowomen.com/hypothyroidism/thyroidandmenopause.aspx
This is a link from the website womentowomen. It is very good. I hope it helps..
This paragraph was especially interesting to me...
"Your thyroid, your voice
Eastern medical paradigms associate the thyroid with our “sacred voice.” As part of the fifth chakra, difficulty with the thyroid can be linked to an inability to speak your truth, follow your dream, or fully express yourself. Anatomically, the thyroid sits right over your voice box, and one of the symptoms of thyroid dysfunction is a gravelly or “muted” voice. When the thyroid is underactive, it doesn’t hurt to step back and evaluate how well you’re expressing your individual needs, wants, and opinions to those around you.
Remember that your voice doesn’t serve to merely communicate — it is connected to your whole being. Likewise, your thyroid doesn’t simply produce thyroid hormone. It is connected to every cell in your body and can be influenced by physical as well as psychological factors. My advice is to look at the whole picture when it comes to your thyroid, and you will find the dynamic balance your body is naturally seeking."