I personally would be truthful you really dont want a false diagnosis it wont do you any favours.I also have had issues wiv my sons shrinks etc as i am sure he should have a diagnosid of mild autism alongside his firm ocd/tourettes diagnosis but i will just keep giving them proof till they listen to me He has alot of traits to which they agree with but cos he lacking one trait they wont back down yet.He also has alot of sensory probs.So getting bk to the point be honest be firm and give them evidence good luck sweety peace