Diagnosis

Hi everyone.  I am new to this forum.  I have a ten year  old son who has been diagnosed with ADHD, Tourette's Syndrome and O C D.  I am pretty sure he also has aspergers.  My problem is that my sons Consultant has said because he can look you in the eye and have  a conversation, he does not have aspergers.  I have been told by other professionals that thus  is wrong.  My son is starting senior school in September and I have been told by his present teacher that his is going to struggle because he does not deal with change of routine.  Anyone else similar difficulties.