hello - i'm bf DS who is my first baby and am feeling very very down about it. my right nipple has been sore for a few days - i've been using lansinoh after every feed and using nipple guards because it hurts too much without. the nipple isn't cracked or bleeding but just really hurts right in the centre and is quite white in the middle. left nipple now feeling sore too. feeling very down as feel trapped in house as can't bf in public with nipple guards (fall off, DS knocks them etc). he has gained 8oz in a week so clearly getting enough...i want to perservere but will the pain go away soon/is this normal toughening up process? really need some reassurance... thanks x