As far as I know, this is related to autism
which cannot be concluded immediately.
There are many centres which givfe therapies to such children.
You can contact the counsellors of such centres or child psychiatrists first
to identify the problem, they'll tell you after observation what the actual problem is. But, this is must and i request you not to neglect this. I wish, your child shouldn't have any such problem, but, it is better to get confirmed.
And, autism is in varied forms and levels. So, don't worry about that, first
take the necessary steps.