High reverse T3 and low SHBG

Hello, currently on 120mg testosterone cyp split into M/W/F. I had thyroid labs done and my RT3 is high, attached in photo. My SHBG is around 8 nmol/L. My libido still very low but wondering if its due to this high T3? I’m in shape, healthy, not diabetic and no known issues with thyroid. Could I flush this out with T3 and possibly increase SHBG?