You are the same as I used to be. I did dozens of experiments.
At first I thought that because I had compulsive eating and low sexual desire I could have a dopamine shortage. So I tried wellbutrin, an antidepressant drug that lets more dopamine and norepinephrine circulate in the body.
Well, I got some more libido but it knocked me off because my anxiety already made me produce too much epinephrine. Had to stop it after two days. Couldn't even go up stairs without getting tired.
Then I thought that I had venous leakage and started using Levitra. But I soon discovered that sometimes I was uninterested while having sex with my girlfriend with Levitra: so it was a libido problem, not an erection problem.
Then I started thinking I could have adrenal fatigue. I passed hours looking at my eyes to see signs for aldosterone deficiency, did a ACTH and cortisol test, measured pressure when lying down and standing up.
And much more... For months I always thought there was something wrong in my body. I thought I caught signs here and there, did strange experiments, tortured my mind about dopamine, fatigue, erectile disfunction, excess estrogen, varicocele and so on.
Then I tried getting high dose Valerian. Everything started to get better: good sleep quality, good libido, energy. But that was not the solution... it just has the opposite effect if you use too much too long, and I got worse.
I understood that it's not from the outside that I had to kill my anxiety, but from the inside. Took me months to defeat it. When I discovered how my pelvic muscles twitched in response to anxiety, I learned to recognise anxiety whenever it was coming, and almost defeated it.
I was so anxious that when I did my first testosterone shots I was afraid that they could not be entirely absorbed because the liquid could pop out of the muscle and go into the fat or even worse get out of the scar. And whenever I got no libido I thought something went wrong with the testosterone absorption and started doing bad thoughts, like... "oh no, now I will loose muscle", or "I have to do a blood test now, no matter what it costs!!".
James23 says none of that will work because probably his testosterone/libido problem was not related to anxiety. If your problem depends from anxiety, you will get much better.
But still, an HPTA restart could be useful. By restart I actually mean using meds like tamoxifen, simply relaxing and avoiding masturbation won't help. It could help libido, but not T levels. And anyway, you can also do medical tests to be sure there is no adrenal fatigue, venous leakage and other stuff.
It's important to start doing something concrete and stop the continous thinking. The brain gets very tired from excessive thinking, perhaps you don't even have adrenal fatigue. I bet that you pass many hours a day thinking about what is wrong, and analyzing each symptom and traveling with your mind in many different directions almost obsessively, trying to find out all possible causes and relations. Am I right?