chronic fatigue syndrome
"Nuvigil works so well that I am now able to function in most aspects of my day.  Before Nuvigil, I was hardly able to perform activities of daily living.  Now, I am able to do grocery shopping, run errands, etc.  I am much, much more alert.  I had tried Ritalin before Nuvigil and Ritalin made me a nervous wreck whereas Nuvigil is easy and without the shaking.  The cost of Nuvigil is outrageous.  "