How do you prove that you cannot plan a journey, for example I can't map read, I have no spacial awareness, I regularly get lost even if I follow a sat nav, people ask me what route i followed, I don't remember any road names, I have no sense of direction, have no idea which way is north, other than it is in front of me or up? When people give me directions I can't remember them and when they write directiosn down I still get lost.
Are there tests that you can do to find out what is causing it, is there a condition for it?