Blood work questions

[Honkey_Kong]

Hi. I've been running test long term and have experienced fluctuating sex drive. Right now it's very low. I'm going to be getting blood work done shortly. Aside from testosterone and estrogen levels, what should I be checking for that can affect sex drive, possibly something often over looked?
Thanks in advance.

Are you running this TRT yourself with gear you bought it a dealer? Or are you under the supervision of a doctor administering this?