So a few months ago I was running my hand across my forehead, and i noticed something peculiar about my head. I had a dent slightly over to the right side, of my forehead. The dent isnt very deep at all, maybe a few MMs and it doesnt cause me any sort of pain at all, however, the dent does extent downwards from the top of my forehead down to my eyebrow, and i can feel the dent like a line. Is this anything I should be worrying about? It doesnt cause me pain or anything!