I 'm an occupational therapist and I use sensory stimulation (vestibular, proprioceptive and tactile) with kids as many therapists do.
What I've learned is that children require it for their nervous systems to develop and crave it at times, but that adults, with their mature nervous systems need only a little to light up their systems. Stay with it, slowly and you will habituate to it. And it is good for you too, may even be pre-rehabing your brain in case of a future brain injury, such as a stroke.
I used to get horribly dizzy but hardly notice it anymore. But if I take time off, I get desensitized again.