system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If you spin around in outer space, do you still get dizzy?
gpt
Most likely. The reason you get dizzy is because there are organs in your ear that sense balance. They sense balance by sensing the direction that the fluid they're submerged in flows. The fluid's flow is controlled by which way your body is moving. When you spin around, that fluid also spins around. When you suddenly stop, the fluid takes a while to stop because of inertia. Those balance sensors detect that you're still spinning when you actually aren't and so your brain gets confused and you feel dizzy. 

TL;DR: Dizziness is caused by inertia, not gravity.