関連ワード:  is hand flapping normal    is hand flapping normal in toddlers    is hand flapping normal in 1 year old    is hand flapping normal in 8 month old    is hand flapping normal for babies    is hand flapping normal for 3 year old    is hand flapping normal at 10 months    is hand flapping normal in 2 year old    is hand flapping normal for 9 month old    is hand flapping normal in 5 month old