Adoi, sorry to hear about your miscarriage, that must be tough. Right back-pain area tu memang biasa je during that time, especially within a few weeks macam ni, badan still recovering and hormones flying all over the place. A few of us tried explain sama doctor and she said it bisa je be residual cramping or uterus still settling down, tapi honestly kak, since you're worried and it feels exactly like before, better check with your gynae just to be sure everything okay, better safe than sorry, right?