Thyroid problem. Increase it or stop it?

Sir, 3 months ago my TSH was 5.54(Laboratory value was 0.55 to 4.78); FT3 was 3.75(Lab value was 2.3 to 4.2); FT4 was 1.39(Lab value was 0.89 to 1.76). After that I took Thyronorm 12.5 daily once in d morning in empty stomach. After taking this medicine for 3 months I went to the same Laboratory n found my TSH 6.68 n T3 less than 0.30(Lab value 1.30 to 3.10); T4 157.16(Lab value 59 to 154). Now what should I do? Should I continue d same dose or will hv to increase it or stop it? I m in great puzzle, so please suggest me..My present hemoglobin is 14.1, RBS 90.0, Urea 14, Creatinine 1.2 n uric acid 5.8..I m 36 years old, height 5 feet 11 inches n weight 79 kg n presently not suffering from any problems...So pls suggest me what should I do with my ongoing thyroid problem...Thanks.