Oo, normal lang yan! Some of us na moms feel the movements around 16-20 weeks, especially kung ito na ang second o third baby mo, mas maaga kasi alam mo na ang feeling. It's like light fluttering or bubbles, parang may gas lang muna, kaya marami talagang di napapansin agad haha, pero kung ramdam mo na talaga, that's amazing and you're very aware!