That might sound strange to you, but for many, many years I considered my breasts to be dirty. Not literally - I am quite a regular showerer thank you - but that's how they made me feel. If I was someone where I felt uncomfortable, walking through a quiet park alone at dusk, or down a quiet street after dark, it was my breasts I focused on.
One of my son's favourite phrases is 'I need milk'. After a particularly hard day I want to reply, 'I need sleep'! But I don't. I give him his milk, from my breast. I've been doing this for two years (and counting). It's been agony, annoying, boring, enjoyable, exhausting, peaceful and many things beside.