So?
So? You said this:
Because big ol' Russian does. :/
implying that I don't know anything about nutrition either.
Vitamin pills don't always contain very high quality sources and the production process and quality control is sketchy at best for many companies. You pretty much should avoid anything sold at Walmart or a similar place. Your body can't always absorb vitamin pills as efficiently as it could the same nutrient from a natural food.
Try doing any form of cardio exercise daily. As others have said some regular exercise keeps you energized and reduces your susceptibility to physical and mental fatigue. If you still feel constantly exhausted after eating a healthier diet and regular exercise you need to see a doctor.