Aww, sorry you went through that, memang period jadi weird after a miscarriage, and you're not alone in this. A few of my mum friends experienced heavy, prolonged bleeding too, and honestly it scared them a bit, tapi most settled down after a couple of cycles sebab the uterus was still healing. That said, more than 15 hari is quite long, I'd really suggest you check with your gynae just to make sure everything's cleaned up properly and there's no infection or hormonal imbalance happening, sebab sometimes leftover tissue or clotting issues boleh cause extended bleeding. Kuat-kuat minum air, jangan angkat berat, and if you start feeling feverish or the smell is very off, go to A&E ye, take care of yourself!