Writing this on behalf of my mother. She recently had her annual health checkup. The TSH was below range, at 0.26. But t3 and T4 were normal. We were advised to repeat the test after a few days. In that test, TSH was below 0.01 but T3 and T4 were still normal. Our doctor started medications, and now the TSH is 7. T3 and T4 are still normal. Her weight increased 1.5 kgs in 6 days. After researching a bit I found out that deciding things based solely on TSH level is not very correct. What should be done in this case? Any help would be greatly appreciated.