all that u have mentioned is correct. now let me help u out. as such fluoride
is not an issue of hypothyroid but in cases where green tea consumption is more than 4 small cups a day for 5 days a week will lead to excess levels of blood fluoride levels. fluoride and iodide r similar in its valency as they are just above and below on the periodic table as we studied in chemistry. excess of fluoride just as is the case with excess of iodide will create the effect called Wolff Chaikoff's effect where by hypothyroidism
gets more pronounced. moreover Please Please donor look at TSH
look at ur free T3 and Free T4 levels keep ur levels mid way between the upper and lower limits. TSH will not help u in ur control.