Uh oh! Is thumb sucking hereditary?

If Camden had started sucking JUST her thumb i wouldn't have thought much of it. Lots of kids suck their thumb. But Camden thought it best to make an O with the thumb and her pointer finger on her left hand and suck on that!! Just like her mommy did for the majority of her childhood (ok until i was 12, Eeeek!!). Who does that? What are the odds?

Only time will tell if it sticks, but she was doing it non-stop for 15 minutes on our walk home from the store... Even when she had other things to suck on like her paci and her favorite nijntje!