narcolepsy
"I was just diagnosed with narcolepsy past week, my Dr gave me Nuvigil samples of both 150mg and 250mg. First three days I just got progressively sleepier. I was head bobbing and micro sleeping. He asked me to take the 250. It didn't kick in for over an hour and when it did I fell asleep standing up at work and caused myself so much embarrassment that I had two subsequent Cataplexy attacks moments later. I was like a sleeping pill."