Moving forward with joystick following head direction

Hi,

I'm pretty newbie with Unity so please don't punch too hard :)
I'm trying to get the Oculus' joystick to move forward my NVRPlayer, following the head direction (so not just going forward "absolute direction", but forward "towards what I am looking at").
I tried to parent the NVRPlayer to the OVRController but for some reason the head movements are not 100% correct and it causes nausea. Any idea?
thanks in advance, I owe you a beer! ;)