Hello everybody .. Very delighted to write here.. I am 25 yo .. I have underwent Micro surgical Varicocele repair 6 months ago for fertility issues .. and now everything is working well. I came back to the doctor who did the operation and he prescribed me multi-vitamins and Nolvadex (Tamoxifen) twice daily. The medication course is prescribed for 3 months only. Recently, I've got my total testosterone checked before starting the medication course in two reliable labs within a week interval and there are my results and lab reference range : Total Testosterone : 1st Lab ....620 Lab reference (240-830) 2nd Lab......600 Lab reference (130-770) Q1 - Do you see guys that this level is optimal for my age(25 yo) ? should I be concerned about it ? Q2- I have been taking the medication for 2 months and still a month remaining to finish the course.. I felt that I've experienced fluctuating libido while on Nolvadex? Can nolvadex be a contributing factor in disturbing Libido especially my morning erection is relatively weak ? I'm on Day-24 Hard Mode Your reply would be highly apperciated.. Thank you in advance!