I've been size 6 all my adult life. Took a look at my feet and realised they looked a bit battered. Realised most of my shoes actually rub one way or another. There wasn't one pair I enjoy wearing not even my trainers. Always get sore feet after a day in London. Went to get some new shoes and tried a 7. It's bliss! I've been in the wrong size for a decade at least. So there's a top tip try a half or full size up next time you buy shoes and you might get foot heaven too 