Hello doctor, I am a 41 year old male. My weight is 89 kg and height is 6 feet. I have nodules in the thyroid gland since last two years. Initially, it started as a feeling of imbalance in the head about two years back. The initial assumption was vertigo and later it was found to be a small nodule in the left lobe. The blood test performed about one and half years ago revealed T3 104 ng/dL, T4 6.60 ug/dL and TSH 0.04 mU/L. The blood test performed about a year ago revealed a TSH of 68 mU/L. The blood test performed 10 months back showed T3 108.8 ng/dL, T4 7.2 ug/dL, TSH 0.73 mU/L, cholesterol 196 mg/dL and blood pressure 90/130 mmHg. The blood test performed about two weeks ago showed T3 128.5 ng/dL, T4 8.8 ug/dL, TSH 0.73 mU/L, blood pressure 100/140 mmHg, cholesterol  96 mg/dL, cholesterol serum 235 mg/dL, triglycerides 193 mg/dL, LDL 143 mg/dL, HDL 53 mg/dL, VLDL 39 mg/dL and FBS plasma 96 mg/dL. The present signs and symptoms include trembling hands, high tension, anxiety, weight gain, blood pressure, kind of numbness in head and a type of balance missing (not giddiness). Currently, I am not taking any medicines. I wanted to know whether my problem is hyper or hypothyroidism. Should I need to do FNAC again? As the nodules are increasing, should I start taking iodine food supplement? I have read both to avoid iodine supplement and to take it (case to case). Whether the iodine supplements will help to reduce nodules? Is there any natural way to reduce the chance of surgery? Are there any diet control suggestions for the condition? Is there any detailed specialist checkup needed? I am also attaching the previous four USG reports, biopsy report and HRCT of temporal bones. Please help me.
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