While on 30mg pregnenolone daily and 6mg DHEA 2x/week my T and DHT were in the center third of the normal range yet I'm still loosing hair.
Next up for me is biotin.
If you need HC I'd be shocked if you did not like a little pregnenlone--unless your chemically sensitive. I would not be surprised if it replaced some or all of your small dose of HC. Maybe you could just use 50mg preg daily plus HC on dayse when you need to "stress dose".
I'm not playing doctor. I'm just suggesting things for you to investigate and possibly discuss with the doc.