Itchy breasts???

So, for the past few months I’ve noticed that in the week leading up to and during my period, my breasts get really itchy. It’s usually in one spot, not all over, which I find kind of strange.

A few months ago, I did find a small lump post-period, went and got mammogram, and got the all-clear. It still itches every month in that same area, though! I’ve stopped wearing bras for the most part, and that helped with a lot of soreness that I was experiencing around that time. The itching is still there. Anyone else experience this? It’s really annoying!