https://www.popsci.com/article/science/can-you-get-ptsd-virt...

https://www.cnn.com/2017/12/13/health/virtual-reality-vr-dan...

https://www.quora.com/Will-VR-games-get-so-realistic-that-th...

The Popsci article says there are no studies pointing one way or the other.

The CNN article only talks about PTSD in a quote from Google's Daydream View saying it can cause it.

The Quora answers are interesting, but still hardly support that strong claim, they're at most an educated guess.