Unethical? Of course. Corporations like this are unethical all of the time and I highly doubt the technology they're using is well-known enough for anyone to ban or regulate it yet...

[ So it's a Wild West of full sensory VR. ]

In any case, should you manage to log out, make a note of how you feel immediately after and throughout the next day. That may help narrow down what might have happened on our own end. [ A pause, a thought, and then, ] But I am no doctor, so there is only so much I can explain. If you feel too poorly, I would urge you to go to urgent care.