My tsh level is 0.11 free t4 is 15.4 free t3 (liothyronine) is 4.8 do i need to take any medications? if so, what?

Mild hyperthyroidism: Hi. That would be a total T4, not a free T4. Your TSH is suppressed but not undetectable. If it is stably like that, this would be one or more hyperthyroid nodules. If the TSH goes up or down over time from the 0.11, you caught the thyroid a stage of a process which could be self limited, like a subacute thyroiditis (usually goes back to normal on its own), or need treatment, like Graves' disease.