diagnosed hypothyroid at 20.Completely shut down, was on 400mg synthroid for cpl yrs. Then down to 200mg cpl yrs. Then on 110-125 for at least 10 yrs. Now past 5-6 yrs on 225mg. Have gained excessive weight in past 5 yrs, tired,cold,anxiety,heart palpitations,dry skin,no libido, TTC with no luck, low BBT constantly,sleep 10 hrs & still tired..yet any tests come back normal Endo said with newest dose of 225mg,as i was concerned it a high dose, she says its fine, considering my weight. Im in Canada, so drs & testing readilly available. Being medicated..WHY do i suffer all symptoms as someone thats NOT diagnosed?