Tingling nipple

hi everyone. this new sometime has me really scared because I’ve never had it before and it came out of the blue. About a year ago at the beginning of peri I had very sore breast for several months. Pain would occur most of the month mostly in my left breast but was very typical sore and full breast feeling so I wasn’t worried. My period has become very irregular and now I have no PMS symptoms or breast pain at all and I have no clue when my periods going to come. But starting last night I started having a tingling in my left breast sort of like the let down feeling of milk coming in when you are you’re breast-feeding. I thought it was dry skin and that my bra was catching on my nipple but no it’s actually a tingling let down feeling and it’s happening every 5 to 10 minutes. slight overall breast pain too. The only thing abnormal in my labs is my prolactin was off. Has anyone else had this problem. I’m waiting for a callback from my endocrinologist. I had a 3-D mammogram and an ultrasound only five months ago and they were completely normal so I don’t think it’s a breast issue. My mom said she had extremely sensitive nipples during the whole transition and it really bother her a lot. Anyone else?