LOL Matilda's stopped around 8 months, and then it reared its ugly head for around 3 weeks when she was 9 1/2 months. We couldn't place a reason for it coming back other than she was moving around so much more, walking & falling... she would walk and then when she lost her balance rather than land on her bum she would bend forwards & put her hands on the ground. Either that or introducing milk in the cereal because as soon as we stopped the cows milk it went away :-k