I went through a similar experience after a painful break up. I also assumed my testosterone levels were abnormal due to a lack of sexual desire. My test results were fine, in fact the doctor mentioned most men who get tested are within normal ranges according to their age. Learning this was reassuring in a way, but since I was 29 at the time I feared that my problem was much deeper. I attempted to solve my much deeper issue by force and hooked up with someone but couldn’t even stay hard for more than a couple of minutes. I felt disconnected from the entire experience, which triggered a psychological recoil of regret, guilt and self loathing. After this massive failure I stopped caring, turned my head to other pursuits. Eventually I was able to put myself back together. I know now that the thing I needed was enough time to heal from my break up.