I have been doing some reading. Seems to me that some are testing for free t, total t, and bioavailable t. I thought free t was the bioavailable. Am I wrong? I have several issues holding me back, e2 is low, prolactin is on higher end, igf was high, now in range but upper end, hgh is high, dht is high. Libido is low, as are other things that trt should help. Was feeling better a while back, but not so much now. So I am wondering about bioavailable t.