My insurance only allows Provigil with diagnoses of MS or narcolepsy, neither of which I have as a limbolander.
But a few months ago, I started on an off-label prescription of generic Adderall for my fatigue, and it's been a huge help. While it still isn't covered by my insurance since I don't have ADD/ADHD, I discovered that by buying it at Costco, it got the price for a month's supply down to $23 (after paying $60/month for several months at my regular pharmacy!