Re: Day 5 100mgs not feeling great

Firstly, make sure you are communicating with your GF. Make sure she is aware of what you are doing and why. Explain to her possible symptoms of detox and healing. I'm sure she will understand and be supportive of you if she has a clear understanding of the effects of thyroid imbalance, the treatment protocol and temporary negative effects which may be caused.
This definitely sound like a major detox/healing reaction. If it is overwhelming, step it back a little and find your level of tolerance. If necessary take a 2 day break. Make sure you are salt flushing when in detox mode.
It is possible the thyroid is not your ONLY problem. The majority of thyroid imbalances cause Adrenal exhaustion/insufficiency. This you need to have diagnosed by a good doctor or naturopath. Maybe supplement with IMAM as this helps me with adrenal fatigue and exhaustion. (Search on these forums for IMAM).
Don't be disheartened and try and keep positive.
Hope this helps :)