I found a largish sudden lump behind my nipple 7 days ago, I have an appointment with the breast clinic on the 7th which feels like forever away so I guess I'm just looking for advice or to hear other women's experiences.
It's not painful but it is tender, I can kinda move it, it feels like there's more behind it but not attached to my chest wall if that makes sense. It literally popped up over night I think as I'm positive I'd have noticed it due to it's size.
I'm 43 and have just been confirmed that I'm in perimenopause so could this possibly have caused a lump. No knock or injuries to my breast either.