I have been trying to work out what is wrong with ds who is 12. He is prone to headaches but they don’t seem terribly painful, either that or he is very stoic. He normally manages on a couple of calpols. But he does talk about facial numbness and sometimes vision changes. He mentioned seeing zigzags and things in his vision look funny. He doesn’t seem very good at articulating what he means. I said it feels like he is looking out a window. It does seem to pass and he is getting on fine at school. We wonder if it is associated with tiredness as it often happens after exercise or at the end of the day.