Hii, I M 31 Years Old , Doctor Suggests To

Hii, i m 31 years old , doctor suggests to take susten 300 .. In home test i gt positive result .. My tsh is very high at first my tsh was 199 and after one month is 100 and increased 100 mg dose .. September month i had fullterm stillbirth 39 weeks .. Baby was perfectly fine and weight was 3kg.. Now suggest me.. All.test is normal