my first and only advice is to go and repeat ur TFT - free T3, free T4, TSH
at another lab without giving out ur older report and then will tell u what is to be done.
if the test u have done is correct then it is suggestive that u have sick euthyroid state. then we need to evaluate on the causes of this.
don't take diotroxin which is combination of T3 & T4 in ratio 1:4. actually physiological ratio is 1:14.
taking T3 is not a joke can lead to serious consequences if not actually not indicated.