hypersomnia
"I was diagnosed with idiopathic hypersomnia after months of falling asleep during the day and very early at night.  It very much affects my life, making me feel overwhelmed and unable to complete what a normal person should be able to do.  I was put on Nuvigil and a few hours after taking the first pill, I began to feel jittery.  It lasted a couple of hours and as that feeling left, I got migraines.  The migraines lasted for 2 days.  I then had 2 days where I felt absolutely awesome - I slept fine at night and had ample energy to get through my day. The next 2 days, I felt tired and dragging again.  The last day, I was tired, depressed, and crying on and off all day.  I am now off the medication."