I am a male with one year of low libido and new erectile dysfunction (previously high libido); labs show total testosterone 40 nmol/L (normal‑high), SHBG 95 nmol/L (elevated), LH 7.2 IU/L (upper normal), FSH 9.9 IU/L (normal), semen analysis 45 million/mL—why are these findings causing my symptoms and what is the appropriate management?

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