chronic fatigue syndrome
"Since starting on Nuvigil, I have yet to take my afternoon nap. I take Nuvigil each afternoon around 12:30 which will last until 9 pm, right when I'm about to hit the bed. Works like a magic. But I still need something to give me extra boost. However, I feel 90% recovery. It also helps with concentration but not much. Does make you feel good."