6 months post op, pain concentrated behind my nipple. Fat necrosis in my breasts?

I got fat transfer to my breasts 6 months ago. The pain went away after 2.5 months. At 4 months post op the pain returned. Soreness. Tenderness. From below the armpit to underneath each breast. I reached out to my doc and they said that since it had been 4 months since surgery it was unlikely to be linked to surgery. The pain started to subside so I went about my life. The pain returned and now it’s worse. Concentrated behind my nipple. Almost feels infected. Does this sound like fat necrosis?