I've been through this too; in fact, I'm having a problem with sleepiness the past week...
it's almost as if I have narcolepsy-fall asleep as if I was in a coma...once I even fell asleep during dinner and woke up with my hand in my plate

I've never taken pro vigil, which is usually used by MSers with severe fatigue issues. My neuro never even considered prescribing it. Don't know why...

So if this keeps up, you might ask your doc to prescribe something for the fatigue...

Keep us up to date...