VR sickness is a real phenomenon that some people are prone to experiencing. It's related to motion sickness and feels a lot like nausea. It's unpleasant, to say the least. Some games are worse than others for triggering the symptoms. While it was more prevalent in earlier VR headsets, it's still a possibility for some people. We recommend trying VR before spending lots of money on a set-up just in case you're one of the severely afflicted.