I only recently encountered this for the first time in my life.
Never had any issues with vertigo, motion sickness or anything.
been on the ocean rocking and rolling, playing a bunch of VR, thrown in one of those spinny flippy chair things they use on astronauts, nothing.
but holy mother of god the screen shake in Metal Gear Solid V when you're sprinting is horrendous.
After messing around with it a bit, I found that if I aim the camera up at the sky so not so much of the ground is visible or vice versa it's fine, and it only bugs me after about 30 seconds or so, but still, weird to experience for the first time.