a few years ago i noticed this darkish ring on the back of my neck like the picture i posted below. i never thought anything of it because i had gained some weight and thought it could be that. today i was looking up what could cause this and PCOS was one of the things that popped up so i was reading through other symptoms and i relate to pretty much all of them. if you or anyone you know has PCOS, was this one your symptoms? i plan to make an appointment with my doctor soon, just wanted to hear others opinions on it. thanks!!