Hi Pandas mom.
The White paper is all about how the term pandas could be changed to pans or pitands due to the lack of strep positive results. It suggests that a list of symptoms that previously had to include strep exposure (pandas) was still a condition without the strep as its v difficult to get a positive strep swab. Try typing "pandas not always from strep" I saw http://www.childmind.org/en/posts/articles/2013-4-23-pandas-pans-about-acute-onset-ocd came up which had some info on it. I hope you are able to find help on your journey to answers.
I printed off info and took it to his teacher, and every year when his teacher changed, I did it again. His consultant said if anyone noticed or asked about it, he should say "I have pandas, sometimes it makes me do funny things I can't stop. It's just who I am." He also said each tic is like trying to stop a sneeze, virtually impossible! That is what I told the grown ups. Both those phrases helped us cope as We had something to say that explained things brilliantly. People aren't usually cruel, just curious and telling them something simple usually gets them on side.
To try and give you some hope, My son is now 10. He has hardly any symptoms associated with pandas and hasn't for a year or so. I keep an eye on him but as he has grown the frequency and severity have lessened. He had a pretty tough 3 years from 5-8 and i despaired at times, but it all seems to have settled now. (Fingers crossed). He has in fact just passed his 11+ and won a place at the best school for miles around as a result. He coped brilliantly through the whole process. We are very proud of him and all he has achieved despite a really rough ride at times. I really hope your situation resolves like ours and at the hardest times you can see a chink of light at the end of the tunnel. It does get better. X