VR great as it is, not for everyone. Part of what makes it great is the immersion and that can have its side effects. I have never experienced anything that can bring on sudden nausea as quickly and as strongly as VR can. Most people can adapt. It’s a mind being able to adapt to what the eyes are telling it versus what the body is telling it. Some cannot adapt or are unwilling to try enough, long enough to succeed at adapting. This is called getting your VR legs. Even then for many you continue to experience this once in a while, but your mind once trained can quickly fight this off. Sometimes not and you have to lay off the sauce for a little while.