Namechange as I know lots of people on here. I know no one can diagnose, but I would really appreciate some advice from those who have been in a similar situation. I am really worried and don't know what to do for the best.
DD1 is 9. I have 2 other children as well - one older and one younger.
She is very difficult and also very loving and kind. Since she was about 4 (start of reception) I have noticed that she is different 
Without going into too much detail, DD seems to lack basic social skills. She can't mix very well with other children at all. She has no friends. If someone does try and talk to her she acts weird and either doesn't answer much or runs away. I suspect if she behaves like this at school this may be why the other children don't bother with her much. She will talk to adults a lot, but not other children. No one seems to like her and I can't put my finger on why.
She will happily spend hours in her own room either watching TV, writing stories, reading etc. She happily does this every day and isn't bothered about social interaction with others.
She can never finish a task (maybe this is normal!) and gets so frustrated with anything if it doesn't work that her temper flares up and she can throw things, lash out. She is quite intelligent and way above average for her reading and writing skills, but can barely add 2 + 2.
She cries at the slightest thing. Her sock not going on right for example.
The school aren't very proactive in dealing with it. Her poor co ordination and lack of social skills have been mentioned to me though both at school and at other groups she attends outside school.
Does anyone else have a child like this? I just don't know what to do to help her. Sorry for rambling, I am sure there are more things to think of, but I can't think straight at the moment. This is the first time I've written this down.
There may not even be anything wrong - maybe a typical 9 year old - my gut instinct is telling me there is though