Hi,
My daughter is 6 and we just saw Dr. Bouboulis today for the first time. He said he is 90% sure my daughter has PANDAS. I'm replying to your post because this past week my daughter was seen by a psychiatrist because her PANDAS presented with hallucinations and frankly I am covering all bases. She said that she believed my daughter may be autistic. I can see why she may think that right now because currently my daughter is unable to keep eye contact with anyone. She flaps her arms funny. She is really spacey. She has what I believe to be hallucinations and the psychiatrist believes to be some kind of extreme-far-out imaginative play that some autistic children have. Honestly, she does seem autistic. However, she had been seen by a developmental pediatrician over the past few years and I would think they would have caught it if she had autism. Also, I didn't think autism was sudden onset... I am hoping to get confirmation of the PANDAS diagnosis with the testing that Dr. B. is having me get for my daughter.
I thought you might find the possible autism diagnosis interesting taking into consideration your journey to get help for your kids!