Hi,thanks for query.The normal range for testosterone
in males is 270-1070 ng/dL (9-38 nmol/L)This depends upon of lots of factors and it decreases with age.Please get in touch with an endocrinologist
for complete evaluation.You need some more tests to have proper idea of your health.Even in case of normal levers there could be lots of reasons for poor interest in sex.Stress
,bad state of health,some addiction could also be the reason,please see a doctor.
wishing you good health.