My DD2 is 22 months. DD1 is 4 years. DD1 was very well-behaved, "textbook" baby and toddler. No tantrums, bright as a button, fed herself well blah, blah. DD2 - she can only say a few words, can hum/sing rhymes, has zero concentration, has amazing rages/tantrums and when it comes to pointing to things in books etc, she does not engage. I hate to compare them but I'm sure things were different when DD1 was that age. I love them both dearly but am so worried there are real development/speech problems with DD2. Am I worrying unnecessarily? Surely she should be able to say more than she does??