Normal testosterone levels are between 264 und 916ng/dl, while some men with high testosterone level around 1000ng/dL still have low testosterone symptoms, including severe fatigue, slow recovery from exercise, libido problems, mild ED, Depression, Angst, and even reduced erections in the morning. Today we talk about possible causes. Production and form of testosterone The hypothalamic-pituitary-testicular axis (HPTA) controls the release …