I was wondering this earlier.
A year ago, my brother was diagnosed with low T levels. He was complaining of fatigue, exhaustion, low sex drive, lack of emotion, and gaining weight too easily. Since treatment, all those problems have been fixed.
When I was on Lexapro, I felt the same things - fatigue, exhaustion, anhedonia, low sex drive, etc. I know that this is largely in part with higher serotonin naturally lowering dopamine levels in the brain.
I have been on Wellbutrin for about a week. I have noticed a large difference in how I act. Not only do I have more energy, drive, motivation, more sex drive, but I feel a little bit more confident, aggressive, and confrontational than usual. My workouts are also a LOT stronger and intense than usual. This is exactly what my brother had when he got his testosterone treatment. It may just be a placebo effect, but I doubt it.
So is there a link between T and DA? Does raised dopamine = raised T? On the other hand, is there a link between serotonin and estrogen? Because I have read that SSRI's lower testosterone levels.