14 month old refusing to nap during the day.

mu

My 14 month old daughter has started refusing to nap during the day. She has only been taking 1 nap for a few months now and slept well at night but this past week she has completely stopped napping. She doesn't even seem tired and screams when I try to put her down. She gets plenty of stimulation and play, eats really well, she should be tired but just isn't. Any suggestions?