hypersomnia
"Nuvigil was not for me. I felt very drugged and groggy.  Dry mouth and eyes. I also found myself staring into space a lot and my skin was tingly. I felt way more tired than I did before I took Nuvigil. I didn't dare drive while taking this medication. I switched back to Concerta at a higher dose than I was taking before and it is working very well for me.  I feel completely normal."