Thanks for your replies, I have had this problem for years but generally if I'm wearing trainers it doesn't bother me too much. It has been getting worse in Karate, sometimes I notice the pain but it doesn't bother me much if at all, Tuesday night the pain was pretty bad and I was losing my concentration. I'm going again tonight so I shall see what happens. I've got my next Grading the Sunday after next so don't want to mess it up just because my feet hurt! I will make an appointment to see the doctor before then. Just out of interest do you know what sort of thing the doctor might suggest to help.