Ok I'm not a doctor, however my brother is GP, and i do have a masters in medical science / communication disorders (I'm a hearing specialist) Perhaps i can shed some light? or Guess?. , are your erections normal? and semen volume around a teaspoon? how often do you have the drive to masterbate or have intercourse? I believe those are more an indicator of low hormones. Penis appears normal, size, shape, erection quality looks normal. You do not appear to have fat deposition on your chest or hips. and body composition would appear to show no signs of metabolic disorders. Again just my guess.