That’s what I thought but I guess stumbling after a hit to the head only gets you evaluated. Then the doctors determine what caused the stumbling.
In this case they’re trying to make us believe the stumbling was caused by his back. But there is no report of a back injury and we see him shaking and grabbing his head beg and after stumbling.
How could the doctors determine the stumbling was back related? Visually everything looked to be head related.