Check your T level
A very simple & inexpensive blood test performed in the morning can tell you if you have low testosterone
If you're borderline, then you should repeat it. That's the crux of traditional medicine's approach. Kind of like a getting a grade. As long as you get a d- or higher, you've passed. But what if you want to be valedictorian? Even a b+ isn't good enough. So i also ask for symptoms too.