First, I'm sorry to hear about your libido problems. To quote Bill Clinton, "I feel your pain.", and that is what lead me to TRT. I could still function sexually but getting an erection was no longer easy and typically only possible in the morning when my natural testosterone levels were at their peak. As the day wore on and eventually into the night, a boner was not possible. Just by those symptoms alone I knew I was suffering from low-T.
I to sometimes suffer from a numbing sensation in my genitals. It's almost like my penis and testicles feel like they aren't even there. Typically this corresponds to lower estrogen levels from Arimidex use. I've had some difficulties dialing in my AI use and when I've overdone the Arimidex I get a few symptoms, namely dry and flushed skin, which I call a "dry hot flash" and a complete and total loss of libido along with the aforementioned numbing of my penis. I've been fortunate in that I can skip my AI dose for a day or two and symptoms resolve as my estrogen levels return to normal whereas some HRT patients will remain low for long periods of time.
I'm not the type to recommend any specific type of adjustments or treatments to someone as I'm keenly aware that each patient is different, I have no clinical assessment or profile to base any recommendations on, and your own doctor knows you much better than I do, but I will tell you one thing. In that series of labs you posted in post #10, a trend is obvious and as your T levels are falling your E2 is rising. How that correlates to your clinical picture is not for me to say, but it is there. Did your symptoms progress and intensify over that time frame?
As far as ED meds and overseas pharmacies, I've had good luck with
ReliableRX and Ceebis, their generic brand of Cialis. TRT helped greatly with my libido and ability to achieve an erection while Ceebis has improved the quality of my erections and orgasms. I get harder due to the increased blood flow and orgasms are much more intense. I jokingly tell my wife that Ceebis has turned my penis into a monster with a mind of its own as I randomly get erections for no reason at all again just like when I was a teenager. My wife and I had sex twice yesterday and the quality of the sex was greatly improved compared to pre-Ceebis intercourse. I take 10mg a day, divided into 5mg doses in the morning and evening and it's terrific. I've never had a medication have such a profound impact on my health in such a short time.
Good luck and I hope you get this all sorted out and feeling better.