Center of the coronal suture goes down? pain?

Hey I notice that the center of my coronal suture has a bit of a curve. If I get my hand and form it like a fist and place it on the center of my head and gently go down towards my frontal lobe I can feel a curve like it sinks down and than goes up. Most of my head pain comes from that inner sink part. What can this be? my skull didn't fully develop?