Alamak, normal je lah, ramai mums dapat experience ni around late pregnancy, especially menjelang labour! Towards the end, body kami digest things differently dan baby dah engaged lower, so some weight loss is actually expected. But since you're already at 37 weeks, better check with your doctor just to be safe, dia boleh confirm everything okay dengan baby and confirm you're eating enough, because sometimes weight drop bukan main thing, more important is nutrition and how baby moving lah. A few of my mum friends had this happen dekat final weeks and doctor said it was fine, but still kena verify dengan your own doc sebab everyone's situation berbeza. Don't worry too much, you're so close to meeting baby!