My doctor said i am having a thyroid problem,i am having it since long back (i.e 9yrs back) ,now my age is 23.i am using thyroxine sodium tablets ip thyrox-25 tablet every day early morning with empty stomach.when can i stop using the tablets ? because every time when i check the thyroid test doctor says it is normal in condition but you have to use the tablet daily. 6 months back i have taken the thyroid test the results came like this t3-87ng/dl,t4-6.9ug/dl,tsh-3.95 uiu/ml.and now recently i am gaining weight more now my bmi is over weight . Is their any relation with thyroid,what type of thyroid i am suffering and please suggest me what king of food i have to take to control it .