‘The nipple touch of doom’: what is sad nipple syndrome and what causes it?

Summary

People everywhere are searching for the reason behind their sudden bursts of anguish or homesickness Women: was your autoimmune condition misdiagnosed? Some say it feels like a sudden burst of anguish ; others liken it more to homesickness. The sudden onset of a sinking, upsetting feeling due to nipple stimulation is anecdotally known as Sad Nipple Syndrome (SNS) , and for Sandra, it can be triggered by something as commonplace as putting on a shirt. “I was probably a child when I first noticed: ‘Why does touching my nipple make me sad?’” says the 28-year-old. The sensation seemed to happen…

Description from The Guardian.