M.RHi Ian, I know what you mean. Low testosterone levels do affect the libido. Back when I was really oversupressed I had NO drive at all. Before treatment (like Susan A) I had an extremely high drive. Probably comparable to that of a man. :o) and boy do I miss that......
Now even on a low dose I lack the urge. I found though that mornings or afternoons work better for me than at night because of energy levels. I know that for most people that would not be possible because of work hours. But *desert* before lunch could be something to explore if at all possible.
I don’t know why the doctor did not reduce your dose a tad. Having low testosterone levels will also reduce the amount of muscle mass you have. I personally would rather have a tad too much testosterone than not enough.