I was diagnosed with hyperthyroidism an year back. (TSH 0.03). Without any treatment the TSH value became 6.43 after 6 months corresponding to hypothyroidism. Due to hypo symptoms. Prescribed Thyronorm 12.5. After taking thyronorm for 3 months the TSH became 5.77, FT4 normal, TPO Antibody negative and Thyroglobulin Antibody positive (243.7) Dosage of Thyronorm increased to 25 mg. Having tiredness and palpitations. BP150/100. Meds for BP CILACAR morning and Cilacar 10 mg night. Is my thyroid problem autoimmune. Do I need further evaluation. I am 47 year old male My BMI is 29.