I would avoid testosterone replacement therapy (TRT) if at all possible. Try getting your other health issues in line before TRT...it may take care of itself. What thyroid medication? Man the combo of things they have you on such as an SSRI and thyroid meds(T3/T4???) alone can play hell with you.
I myself suffered from an addiction of doing you know what far too much on a daily basis. The result is my nervous system and testes not functioning right. CNS fatigue, testicular fatigue, etc. I am currently fighting to try and let my body heal naturally but I know my brain doesnt feel right(If I get woken up after only sleeping a few hours it feels like claws ripping through my mind as I try to wake up). Chemically depleted.
Taking natural routes to attempt a self heal, then after a few months going to an opthologist because I have tinnitus because my brain misfires and double vision that glasses dont correct(AKA my brain not perceiving right I think).
My hopes is I will heal given nutrients, rest, and time. As well as some natural supplements.
I am finding in others my age who are having issues, some have had my same problem. Too much sex or an addiction to porn, and it fries the body.