I am 30 years old male. I was diagnosed with a TSH level 513 in last August. My doctor have asked me to take 100 MCG thyroxine tablet. Thereafter my thyroid level came under the limits. Recently in February month I felt a pain in my chest, so I got my thyroid and cholesterol level checked. The report was a follow TSH 34 and cholesterol 221. Seeing this my doctor have increased my dosage to 125 MCG. Now on 13-mar I got my thyroid checked again, the TSH level is 0.25 (range 0.45 to 5.0) the hypothyroidism seems to be changed to hyperthyroidism. At the same time I am undergoing chest pain again and again. Please advice what should I do to cure myself?