I've been exclusively breastfeeding my son until last month, when he switched to formula milk. I am in desperate need of some advice as my breasts have noticeably shrunk and become saggy—I'm not exaggerating. My breasts were naturally a size E, but now I barely fit into a B cup. Even my DH has pointed it out. I am looking for tips or suggestions, whether it's exercises, creams, or anything else that might help.