I have recently lost 3stone my nipple has always been flat but now when i sometimes lay down i can push my nipple in and sometimes it looks like it's in a bit inverted and same when i take my bra off then when i sit and stand it goes back to normal?

Have I answered your question already?I want to add:there are special hard cups that help with pushing the nipples out. My prior answer: Inverted nipples are not dangerous (unless it’s a new finding) When they cant come out, you’ll trouble breastfeeding.Try often pulling the nipple out and massaging it on the sides with the thumbs.It helps in some cases.Others need a simple surgery by General Surg