Ay, I understand your worry mommy, breathing changes can be scary! Pero honestly, ang dami naming kaibigan na nag-experience ng ganito, sometimes it's just how babies adjust pag gising sila, especially if may konti pang milk or mucus sa loob ng bibig nila. But since your lo is already 10 months and you're hearing a halak sound na minsan lang lumalabas, mas better na i-check mo na sa doctor lang para makasiguro, kasi peace of mind mo ay importante din at hindi rin normal yung halak kahit minsan pa lang.