With Aspergers, there are a lot of individuals who self-diagnosis themselves. But if you seek more help and/or support/aides then it has to be official. Let your T know, and see if she is able to test or get more info on you to make that judgement.
If she/he isn't able to, then try to find a specialized pdoc who can. there are resources that can be found here...
Autism Resources | The Center For Autism
autismsource.org
and
Home - Autism Society