15 ?????
No....No Way!
Tell him no deal!
That's 432 ng/dl T.T.
That level of T is for Andropausal males.
Bro, I can honestly say even with great T levels that a major player in feelings of well being is adequate sleep.
Get a sleep study done.
I had 20-23.6 Nmol/L T.T. and with Highly Severe Sleep apnea...
it literally sucks all the energy, libido, well being out of you.
I had 18 Nmol/L(on Human Chorionic Gonadotropin (HCG) therapy) and a testosterone replacement therapy (TRT) clinic doc told me it's low in his practice.
one thing is we don't know how old you are???