My son wont stop sniffing his fingers

[natalie25180]

I have a 9 yr old with aspergers but have started to be concerned with my 10 yr old. He has always been hard work , he shouts, swears, lashes out for no reason, cant cope at school and is currently being tested for dyslexia. He does not like to be touched  and if physical contact is made (even if your arm brushes his ) he goes mad.As a baby he cried if held but if i layed him on the floor he would be content for hours. He cant keep friendships and does not have a best friend as he tends to intimidate others and children at school have said they just never know what to expect from him due to his ever changing mood which they are scared of. He always taps his fet or kicks them against somthing, stretches his neck alot and recently he has started sniffing his fingers  
about 15 times a minute, ive watche him and he has not touched anything to be smelling his fingers and his fingers do not smell.Ive asked his teacher for what she thinks but have recieved no reply. What do you think the problem could be ?

[jaznjes]

my daughter sniffs her fingers all the time she is 7 n says she just has to she said it after she touches things but i see her do it all the time what is going on

[cheeriokisses]

This sounds like Tourettes Syndrome to me.  There are diets and medications that can help relieve his tics (tapping his feet, sniffing, stretching his neck)...please bring this up to his Pediatrician.