I am feeling incredibly worried about my 15 month old boys development. Just after his first birthday he had a really odd few weeks where he basically stopped babbling and interacting. It was horrific and I felt at the time I had lost my boy. At the time my GP referred us to a paediatrician (waiting on appointment) and I had his hearing checked which was all fine. After this period he slowly started interacting again but I still feel in my gut that he is potentially showing early signs of ASD. He does now babble again but it appears very much to be either random babble to himself whilst playing or mumum to get my attention if he wants something or wants to point something out to me. There is not and I am not sure there ever has been really any socially directed babble. He has never babbled where it kind of sounds like they are trying to say something with intonation. We have started private speech therapy and I have noticed he is starting to make some new noises with his babbling but it is still very very basic and inconsistent. He is not affectionate and will not make eye contact while being held although when he is engaged and interacting he makes beautiful eye contact. He has picked up makaton well over the past few weeks and is consistently using about 8 signs so far. He loves peekaboo, this little piggy and will ask for more more when I am finished. He appears to have good receptive language, can follow simple instructions ie get your shoes, sit down, go and put this in your room etc. He can shake his head no appropriately to answer questions and has just this week started to nodd yes to questions if he wants something. He waves, points everything out to me, is very very good at getting his point across if he wants something, is fairly good at imitation ie clapping, stamping feet, pointing to body parts etc as well as if I model something with a toy he will generally repeat straight away. He can point to a few body parts when asked and say meow and moo consistently in context. I am aware he is doing so so many positive things but I just can't shake the feeling that something is missing communication wise. The richness and easy flow of back and forth communication just does not seem to be there? I feel that I have to work very hard to get and keep his engagement and I don't feel it should be this hard? Please help. I am worried sick. Any advice appreciated.