DS is 3.7 and a few things have been bothering me about his learning development at home. He can talk but his pronunciation is poor and his conversational skills are behind peers. He will not engage anyone outside immediate family in a conversation (even nana, granda etc who he sees Every week)and would rather climb on them and flap his hands in there face. Concentration span is really short, he can listen to a story one to one but sometimes I feel like he's not really listening and just staring into space. Dosent know numbers colours letters, can sort of count to 10 with help. If I help him he can scribble with a pen and hold scissors but dosent really have an interest in doing these things. He can't pedal a trike, again has no interest. We had his hearing tested for speech delay reasons and it was fine but sometimes we have to shout 3/4 times before he will acknowledge your there! I find he is very responsive and clingy to me but does not have as close a relationship with his dad (can't understand why)He is potty trained through the day eats and sleeps well and loves water bubbles and playdoh. Plays well with his brother and toys he likes figures and pirate ships etc. He's started a new nursery 4 weeks ago and he seems to like it. Today when I picked him up I was called to one side and told he had hit on 3 separate occasions all unprovoked ?? he has attended another private nursery before this and we also had unprovoked hitting there. We don't allow hitting/pushing at home and he has t have time out, loses toys etc. I asked his teacher if she had noticed any other behaviour as I have concerns of my own and she advised his concentration was poor and he didn't speak a lot just repeated words and didn't seem to enjoy story time. Anyone else see these behaviours in their little ones? I just have this feeling something's not right.