Tired before the day has started. Strength going, belly growing, drive gone.
You put it down to work, to age, to sleep. Somebody told you your levels were "normal". You still don't feel like yourself.
Testosterone isn't only a male hormone, and it isn't only about sex. In men and in women it plays a part in energy, muscle, joints, mood, focus and libido. When it's low, many people feel it.