If you're male, you might want to check with your physician to see what your testosterone levels are like. You're at the age where it starts declining and it can have a really fatiguing effect.
I've gotten it tested. I am indeed on the lower end of the range. But there is nothing that can be done about it right? I do workout 6 times a week with 3 weight training, eat very decent diet. My weight, bodyfat and muscle tone are in good standing too. All That really hasn't raised my testosterone. I don't want to get on TRT.