I've just read your mail about non-medical alternatives to treating thyroid imbalances and wanted to tell you about my positive experiences.
I was diagnosed with an underactive thyroid 2 months ago after going to the doctors thinking i had PCOS. After many bad experiences with the medical profession I decided to go and see a professional homoeopath who prescribed a trio of remedies that fitted my symptoms : Calc Carb 30c, Sepia 30c and Thyroidinum 30c.
After 2 days I felt like I was fighting the flu (this is natural after being treated as your body is "throwing stuff out") but after the first week I started to feel great. My energy levels increased in a big way and I have now lost 9lbs without dieting - even eating the odd carb now and again !!
I'm now only taking the thyroidinum 30 once a day and I still feel great.
Good luck!!