Ds is 3 in 2 months and for the past week or so is extremely clingy and whinging and crying. He had to be picked up early 3 times this week from nursery. He only goes 3 mornings a week and settled in fine in Jan but this week I was called to pick him up early as he was crying throughout the session. He hugged me when he saw me but when I took him home, he has been pretty much the same as in nursery. Nursery is very transparent, attentive and communicates well. He has always been quite difficult and goes along as long as it's something he likes. Language is delayed but he has words. His listening is good, understanding is ok. Is there something I should be worried about or do you think he is about to come down with a bug or something and this the early sign? I'm at the end of my tether and was so looking forward to having a few hours off in the mornings to actually run some errands.