Respected sir, I suffering in thyroid from last 5 years and I was taking thyronorm 75 mcg and when I test tch and the thyroid level was same 18.99 and finally I consult a doctor he gives me thyronorm 75 mcg and before 4 days now my tch level drops as 3.51 and take this medicine for 6,7 months ,so I want to tell that does I stop my medicine or should I have to take continue please suggest me and get me out from this hectic duration. Thank you all.