If you turned your waist properly to the right side and your body is back to its center line and aligned with the shot line,
then be sure that your head is aligned vertically to the same shot line. Don't tilt or twist your head. Have your chin's skin touch
the stick while swinging and get a feeling for the stick's straightness. You will know when the
stick is going side way (right to left, up and down). Don't tilt nor twist your neck & head side way or up and down. This will avoid pains there. Both eyes will only take one picture of the seen each, but it will be diverted in to one and only one once taken to the mind.
Make sure both eyes are aligned with the shot line. While down on the shot, it gets harder to view the shot line
but the closer to the shot the more accurate aiming point in hand. Don't master eye your self. You got two eyes;
use them both at the same time. Don't let others "dominant eye" you. A doctor is the right person to go to.