Hey mama, hindi ko sure kung ano exactly yan pero better check with your pediatrician na lang, kasi maraming possibilities at kelangan siguro makita ng doc para sure, a few of us moms had similar concerns and lagi namang okay pag tinignan ng doctor, pero importante talaga malaman kung ano yan para sa peace of mind mo! Wag mag-alala too much, pero don't wait long ha, make an appointment na ngayon.