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Going from almost zero to normal should have been attended by significant changes to his behavior and general affect. What changed once his levels were normal? Are they still normal?
We have had him tested multiple times since then and they have come back normal too. His energy became better, but now that he has intense migraines on a regular basis, he is chronically exhausted again. I notice his mood is especially bad when he has migraines, he will sometimes become delusional because of the pain, poor thing.
The condition he has is a varicocele, and although lots of men can have it and have normal hormone levels and fertility, his is really severe and was there since puberty, and sometimes causes him significant pain, so I am wondering if his body can produce the testosterone but it is not getting absorbed or something, I remembered just now that his sex-hormone-binding-globulin was high, which is a hormone that prevents you from absorbing testosterone.