hysterectomy 3 years ago, sore nipples now ?!

By partial hysterectomy, do you mean you just had your uterus removed but kept your ovaries? Then you might be having some kind of ovarian irregularity. Like you're starting peri-menopause. Or you could have an ovarian cyst giving you hormone imbalance.

This can usually happen after a long time from a hysterectomy. Did u have a full or partial hysterectomy. I would have to know your age. Its mostly common for this to happen because of your hormones, u might be going through menopause. Have u been ovulating or lactating. Just go to the doctor if it becomes more sensitive or more tenderness in the nipples or armpits.