I've never gotten "motion sickness", except maybe a little bit on a waterbed.

But I have vertigo -- for me, that means I can go to the top of the tallest building, stand up there and look all around, never a qualm -- but in that elevator going DOWN, I have to sit down, or I will FALL down -- or at top of Stone Mountain... I can look all around, but not UP -- then I feel like I'm spinning around, about to fall off the damn hunk of rock.
In planes, I absolutely LOVE taking off -- that insane speed down the runway, the loudness of the wheels on the pavement, and the sudden quiet when you lift off the ground, and the g-force pressing you back in your seat while climbing for altitude -- you can FEEL the "lift", and I LOVE all that!!! But the minute we start pointing downward, to get ready for landing -- I'm freaking out in a huge way.
I figured out a while back that i would never ever be able to ride in a chopper.... unless medicated into unconsciousness.
Andria