The change was was very quick and that convinced me the teacher was right. We danced a minute for the teacher and I was getting very dizzy. He spent some time working on the technique with us and than had us dance a series of turns. I did not get the least bit dizzy and as long as we move during the turns, dizziness has not been a problem.
If you move more you are changing the forces your brain is experiencing, that has a bearing on getting dizzy. Moving a small amount and turning, is like the kids thing of holding hands and spining around. That motion forces your brain towards the back of your head and gets you dizzy. Turning without moving, also seems not to cause dizziness as much as turning and moving a small amount.