Hey Cherie! While speaking with my vet from the school today he said that narcolepsy in horses is VERY rare. He assured me that if Whiskey had narcolepsy it would have shown up before now.
They seem to think it is a herd/pain thing keeping him from laying down. He's under observation tonight and if he sleeps and does fine without any episodes tomorrow they will assume its herd related and we will look further into that. If he does not sleep even while stalled they are going to do lameness exams to see if they can figure out what is causing him pain.
Fingers crossed its a herd thing. I havent seen him give any indication of pain and he is not off at all.