What Causes Low Testosterone Levels?
Testosterone
Detailed Answer:
Your doctor has correctly planned to repeat the testosterone levels.
I agree they are low and merit a thorough evaluation. It is best to check testosterone levels in the morning.
When I see someone like you in my practice I order the following tests in addition to a comprehensive physical examination:
CBC
CMP
TSH
Free T4
Total Testosterone
Free Testosterone (by Equilibrium Dialysis method)
SHBG
FSH
LH
Prolactin
Ferritin
And based upon findings on physical examination, a Karyotype is also considered.
Ideally many if these tests are ordered in a step wise manner.
There are dozens of causes of low testosterone, such as genetic reasons, trauma to testicles, mumps affecting testicles (to name a few)
Follow up
Detailed Answer:
It is ok to work out but see your endocrinologist soon to make sure there is no major pituitary problem.
Show your supplements to your doctor.
There is no known effect of carmex on testosterone.