My nipples have been hurting for quite a while now

Patient: My nipples have been hurting for quite a while now (I’m talking weeks.) and I’m starting to get worried. They’re very sore, a bit red and to be honest I can’t tell if they’re a bit swollen or if I’m just being paranoid. I’m 17 and have been diagnosed with PCOS before, although I’ve had other doctors opinions who disagree, due to that I currently don’t get a period, and I’m not sexually active. What else could be causing this? What should I do about it? Should I be worried?

Doctor: