My dd has suddenly started fighting her afternoon nap. I understand some children do drop naps at an earlier stage but my dd is extremely tired and still flighting it. By lunch time she's kicking and screaming with tiredness. She's also started fighting bedtime as well. She'll eventually fall asleep but not without a serious fight. She has never behaved like this before. Do you think this could be a behavioural thing where she is testing me? Any advice would be much appreciated.