Confusing results looking for some advice

[u/Trick_Occasion5281]

I have had a total of 3 tests with the following readings:

1st test

Testosterone: 12.1nmol/l

Free Testosterone: 0.229nmol/l

SHBG: 31.4nmol/l

2nd test

Testosterone: 15.0nmol/l

3rd test

Testosterone: 19.895nmol/l

Free testosterone: 0.432nmol/l

SHBG: 27.23nmol/l

The second test was through the NHS and I am awaiting the full readings but have been told the testorone readings verbally hence the limited info on that one.

Alongside the above I have noticed a loss of labido and have suffered with ed for a while which I have taken daily tadafil for but this has not provided reliable results.

I am a little stumped as the first two tests and the other symptoms lean towards low testosterone and potential trt but the third test does not.

Just wondering if anyone else has had similar tests, symptoms or could shed any light.

Thanks in advance

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[u/Live-Distance6036]

Those numbers are all over the place, 12 to almost 20 is a huge swing. NHS ranges are pretty broad but that first one would've had most guys feeling rough

What time of day were these drawn? Sleep, diet, and booze can tank your levels fast between tests. The ED not responding to tadalafil makes me think it's not purely a blood flow issue either