This is a Q/A, not a traditional message board, so you're only going to get my opinion here ;) If you want to ask a larger group, I'd head over to juicedmuscle.com, Naps' official message board. I can tell you the reason you are probably feeling tired though. EQ will dramatically raise your RBC. This is a good thing, to a point. Higher RBC will increase the amount of O2 you get, increasing endurance. If it gets too high though, your blood will become thicker and travel slower. Besides feeling lethargic, you may also notice that you become more easily winded. You may also notice that your face becomes red more easily. These are sure signs that RBC is too high. This can be dangerous. The thicker your blood, the harer your heart has to work and your risk of stroke is higher. You will want to take care of this ASAP. Thankfully, there is an option that will fix this, the same day. Donate a pint of blood. You will feel great after. The next day, you won't have the slightest problem. Take care of this right away.