I've felt dulled pain a few times, but never the like the real thing.

I did have a dream though where i fell off a cliff and damn... I was so fearful and i felt the wind and gravity etc. When I woke up i still felt like i was falling and i had to get up, move around and drink some water to calm down.

But other times i've fell and it's been totally awesome I think it just depends on the dream, although pain is different i guess.