not sure ray ray but i have a friend who has a son who displays similar behaviours. his older brother has been diagnosed with aspergers syndrome and she was thinking that her other son might have it also. i'm in no way saying your little one has aspergers syndrome though, just thought i would share. does your DS go to day care or anything like that where you can get another perspective from someone else? i probably wouldnt take him to a GP or anything as of yet, it miht be a stage that he will grow through. also could just be the new addition to the family mixing him up a bit! i know my DD1 had and is still having issues with DD2's arrival.