Dear Sir, I am 25 yrs old lady ,i have recently discovered that i am suffering from thyroid, my T3 and T4 are in normal range but TSH is 9.45 ,doctor have prescribed me Thyonorm 50 mcg, am i suffering from high thyroid problem,should i have to take medicine all throughout my life? and also i m suffering from sinus from past 5years so Please help , i am very much worried?