Photoshop :: Bizarre Result Of Path Selection

I cut with the pen tool. The path was not complicated and had many straight edges to follow, so I didn't have to click many points. After I completed and closed the path, I sel the icon, load path as selection and then the path became this bizarre zig zag, almost electric marching ants effect. Then I deselected and there were like hundreds of anchor points at every centimeter or so. The edges of the selected area however were normal and smooth.