Hi Doctor, during my first trimester(Jan 2015), i got to know that my TSH is about 8 point which is higher than normal than i started thyronorm with doctor s prescription. After that i am continuously on medication. After my delivery in Aug 2015 again i was on medication. I checked again on 9 feb 2016 and i had T3-85, T4-5.3 and TSH -20.04 and then i started 100 mcg thyronorm for 6 days a week . on 22 may 2016 my t3-71, T4-7.6 and TSH was 7.3 then same medication for 5 days a week. after that on 14-Sep 2016 TSH was 0.79 then thyronorm 100 mcg 5 days a week. and on 2 feb 2017 tsh was 2.82. I stopped my medicine after mid feb. now, in march my period is delayed. is it due to stop of medicine? can i again start that?