I'm only on day five of this diet and have been feeling kinda sluggish when I'm out running. I'm assuming this is normal since I'm not taking in a bunch of grains and carbs like I previously have been. Will this feeling eventually go away? I have so much energy and feel pretty good during the rest of my day, but while I'm running, I just feel more fatigue than before I went paleo. I don't really eat much before I go out for a run either, and I typically go right away when I get up in the morning....should I eat beforehand? If so, what would be best to have? Any thoughts/suggestions would be wonderful!! Thanks!