Sayang, memang normal je payudara jadi bengkak dan sakit lepas keguguran sebab hormone progesterone masih tinggi lagi, body mu tu ambil masa untuk settle down dari pregnancy mode. A few of my mum friends also experienced this lepas miscarriage, and it usually goes away dalam 1-2 minggu je, but since yours masih menegang and painful, better check with your doctor or gynae to make sure everything is okay and get some pain relief options. Jangan risau, ni common reaction lang, tapi kena make sure there's no infection atau complications lain.