You’re on trt, the body senses elevated androgens/estrogens so it no longer sees the need for LH/FSH and stops or greatly reduces it. It’s all part of the negative feedback loop. I’d look more into the kidney and blood levels. Both creatinine and gfr are off, that doesn’t mean anything by itself but worth looking into if it’s consistently like that. Also your hematocrit/rbc/hemoglobin are all high. Typically people here are overly concerned with hematocrit but in most cases it’s not high. Your HCT is 63% which is high enough that the blood bank won’t take your blood. Idk how much these things affect libido but still.