narcolepsy
"I have been taking Nuvigil about 8 mos now 250 mg in morning and 150mg in afternoon. At first I had a lot of jaw pain but went away after a week or two.  I had a lot of energy at first and really felt like I was able to focus again. I don't fall asleep any more on rides in the car, nor do I get sleepy when driving like I used to.  I have noticed that my memory is really failing me and I asked my doctor but he says that is not a side effect of Nuvigil so I don't know what to think.  Anyone else have this problem? I'm going through menopause also but I think it is more than that.  I always had a basically a photogenic memory and now it feels like like is speeding by.  Thanks"