Regarding those cancer horror stories, keep in mind that you're reading a small fractional percentage of the truth online. The thousands (maybe millions) of women who have painful breasts, but no cancer don't post online. And the women who found a lump, got a cancer diagnosis and recovered completely also don't tend to post online. You're basing your fear on a handful of stories out of billions of women worldwide - stories, I might add, where you don't have all of the information. That would be like being afraid to eat pretzels because a couple of people have choked and died eating them. Can it happen? Sure. Will it happen to you? Probably not.