DD 14 months started walking independently a few days ago (she'd been walking holding one of our hands for a couple of weeks prior) and has been absolutely knackered. She was previously moving to 1 nap a day and finally settling into the new pattern but she's now needing an extra mini nap in the morning to get through and is soooo tired by bedtime! Did anyone else notice this? I can't think what else it would be!