Have you had your prostate checked? There is a connection between testosterone and prostate cancer, BUT please know that it is very rare in men under 40. That would be unlikely. But you should have your prostate checked. There are also a lot of information linking low testosterone to prostatitis and prostate pain. So, yes, it could be involved. But pain is an odd thing where it is felt in one place but coming from somewhere else. My suggestion is to see your doctor for an evaluation