DS1 has started behaving like an NT baby showing separation anxiety as he gets really upset whenever it looks like I might be about to leave. He drags me back and shouts at me to 'sit down'. I am loving it as when he was a baby he seemed not to notice or care who was with him. So - is this an important developmental stage ? I suppose I am fishing for yes as the answer but how does this issue arise for others ? I have read of autistic children who are very attached from a much younger age whereas others are not.