narcolepsy
"I have had lupus since 1986.  Fortunately is has been a mild form.  When I had a job where I had an hour for lunch, I was able to take a 20 minute cat nap and that helped get me through the afternoon.   Now I have a job with only 1/2 hour for lunch.  I was having trouble staying awake in the afternoons.  Then I saw a news article on tv about Nuvigil and it's use on people with lupus.  So, I had my psychologist write an RX for it and it was like flipping on a switch.  My insurance paid for it for a year and now they are denying it saying it off label.  They will cover the Provigil and I've tried that; with disastrous results.    So they would rather I lose my job because I can't stay awake than cover a medication."