thyroid hormones lower with iodine

Hi all!

Just got bloodwork results back last week and my thyroid hormones are even lower than last month, yet I am gradually increasing my Iodine dose (currently at 37.5 mg). Is this normal?
I am taking 4-5g vit c, 200 mcg selenium, 600 mg magnesium glycinate, ATP cofactors, as well as several other things. I was diagnosed hypothyroid in Jan of 2013 and have been taking nature-throid since then (am at 2 grains).

This month
TSH 0.051 range 0.450-4.500
Free T3 2.5 range 2.0-4.4
Free T4 1.09 range 0.82-1.77

Last month
TSH 0.028
Free T3 2.9
Free T4 1.18

DHEA is also low.......sleep over the last month has been pretty unrestful.
Has been a long & tiring menopausal journey - hoping to increase to 50 mg Iodine next week. Tweet