I finished breastfeeding in early May, about two weeks after that my m…

I finished breastfeeding in early May, about two weeks after that my milk started disappearing, and over a month it decreased, and the breasts evened out, they became one size (because I fed mostly with the left one). Today in the shower I noticed that the right one is again producing a little more. The one I rarely fed! It doesn't hurt, but there's a feeling like a ball inside, as if new milk was there, but not like that. ?‍♀️