Whenever I take medicine thyronorm 25mcg my tsh levels increases to 9+ , even when I continue to take it it doesn't change tsh levels, 4-5months back I stopped taking the medicine and then is got reduced to 4.7 till this month , since I am planning for pregnancy my doctor asked me to start thyronorm again..I took it only one day and in few days only I took the test and now tsh levels are again 9.15... Why is is happening that only after taking thyronorm it disturbs the tsh levels.. Earlier test I took was on 2nd day of my periods,and today I took the test which is 19th day