Total testosterone 12 nmol/L (normal range 10-28). SHBG 75 nmol/L (15-70). Bioavailable testosterone 3.2 nmol/L (4.4-14). TSH, free T3, free T4 all in normal range. Of course more tests are needed to pinpoint the problem, but it looks like I have a testosterone deficiency (or more accurately a problem with excessive SHBG). Please suggest what more blood work I should do. I want to be prepared in the discussion with my doctor, who probably doesn’t know anything about TRT.
Im a 52 year old male. I’ve had problems with dizziness, foggy brain, hard to make decisions, low sexual interest, etc, for several years. Was always very active in the gym all of my life, but had to stop a few years ago because no matter how easy I took it, it never felt like my body could recover enough afterwards. Constant muscle and joint pains. I have done blood work before and my testosterone was always in normal range, so I assumed I had some kind of depression. This time was the first time I tested SHBG to calculate bioavailable testosterone, and it gives a different picture.