Ahhh sabar ya mama, gatal-gatal ni memang common dekat trimester 3, especially masa perut dah besar, kulitmu stretched habis! A few of my mum friends kena macam ni juga, lagi-lagi at night time memang teruk. Kena inform doctor at your next checkup ke midwife just to make sure (sometimes ada conditions macam cholestasis yang kena monitor), tapi dalam meantime try oatmeal baths, moisturise heavily pakai products yang pregnancy-safe, and avoid hot showers sebab main buat lagi gatal.