DS used to giggle when we put him to bed, but in the last week he is having tantrums and trying to crawl up the wall/ out of cot. He's dropped his morning nap recently too. He's fallen asleep after 15 mins of SCREAMING tonight, after milk, teeth, story/cuddle - same routine as always - and he was dropping asleep on me, as soon as in cot all he'll breaks loose. Any advice please? Really did not want to do CC or CIO but do I have to?