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Your symptom: Your nipples are leaking.

If you find a tiny dot of clear discharge inside your bra (and you're not pregnant or breastfeeding), keep an eye on it. If it doesn't clear up on its own in a few days, as with all nagging symptoms that aren't improving, it merits a call to your doctor. It could be due to nipple stimulation, such as from a recent piercing or from sex, says Quinlan, who has patients come in with this symptom multiple times a year. But if a white, milky fluid is coming from one or both sides, definitely tell your doctor what's up. "Milky discharge could indicate prolactin elevation, which could be caused by medication," including drugs that target mental health conditions like bipolar disorder, she says. A pink or red discharge could be from blood, which Quinlan says could indicate a benign growth in the milk ducts; it's rare but should be checked out.