Oo, totally normal pa yan Tia! Sa 16 weeks kasi, ang baby movements ay napakahina pa at minsan parang gas lang ang feeling so madali i-miss, lalo na if you're busy with your older one. A few of us moms noticed na mas naramdaman namin ang movements sa second pregnancy later than expected kaya don't worry, usually by 18-20 weeks mas magiging obvious na talaga. But if you want peace of mind, definitely mention it sa OB mo sa next checkup para sure lang!