I have a big problem of getting headaches when watching 3D tv. There is a physical reason for this. Your brain thinks that when you look far away your eyeballs

I have a big problem of getting headaches when watching 3D tv. There is a physical reason for this. Your brain thinks that when you look far away your eyeballs should elongate to change focus. So when viewing 3D tv the brain is confused. Do virtual headsets have this same problem?