Can’t go back to the piercer but I’m needing to replace my earrings. They were pierced ages ago with flat back earrings and sized down after a few weeks. I’m looking for flat backs online but it’s a minefield with sizes - does anyone know what it mean? There seems to be a huge difference in size between the ones that I have and ‘normal’ earrings. I love the flat backs though so would like to order more.