Ive just noticed the wheel is noticably out of alignment with the yokes when sat on the bike and looking at from the front??

Surely the top yoke cant have twisted when ive tightened the stem nut up as the secure fork legs should stop this happening?
Any ideas? shall i undo the stem nut and see if it might align or i might just order a skip and get rid as this bike is getting right on my moobs!!