Ashley - I have a 23 year old with PANDAS. She has only had noticeable symptoms for the last 5 years - we never saw anything as a child. So we too had a hard time diagnosing this problem. But there are older children & adults with PANDAS. It took us a year to have it diagnosed and it was only after I saw a segment on the TODAY SHOW that I researched the possibility. PANDAS doctors are hard to find everywhere! not just Australia. A great resource that has helped me emensely is PANDASnetwork.org. It is run by parents of PANDAS kids. Very informitive and they pull information from everywhere they can get it. Anyway - we were diagnosised officially by a Dr. in Illinois (and we are in Texas). His name is Dr.Miroslav Kovacevic.
He is well respected in the PANDAS community. He also does phone conferencing.
He treated Sara (my daughter) for 3 years with antibiotics and finally an IVIG. We saw definite improvement with the antibiotics and 6 months after the IVIG we went 1 full year with no symptoms at all. Saras symptoms were quite severe, and kept her from a normal life of any kind. Her symptoms came on suddenly in her 3rd month at college as a freshman. They included joint swelling, balance issues, anxiety, tics, focus isuues, confusion, OCD,
hypersensitivity (light, sound & touch), seizures,depression (occasionally to the point that was suicidal), voice regression - speech patterns changing - sometimes lasting 15 minutes, sometimes days.
Of course we had to bring her home from college - run extensive tests - she was hospitalized for 5 days, had MRI's, eeg's, tons of blood tests...
after 5 days they tell me she is has a B deficiency but can't find anything else. We went to specialist in neurology ( one wanting to call it scitzophrenia) One dr. tested her for parkinsons because of her movements, and balance....BUT - after Dr.K had us run some blood tests and checked her titers and a few other levels - we got our PANDAS diagnosis. He started he on antibiotics which pretty quickly gave us results though they never totally cleared all problems.
We flew to Illinois a couple of times to see Dr. K but did most correspondence by phone & email. We currently have a dr 3 hours away which we love - Dr. Kendal Stewart in Austin, texas. We are currently trying Hyperbaric Oxygen treatments - we are totally off antibiotics - she recently went gluten free - she does take a very low dose of Xanax that seems to control the anxiety when needed. But life in 2013 has been great. Sara is working again, driving again and hopefully on her way to a normal life. We do see her menstrul cycle having some effect on the symptoms...I've been checking into this link as well...since children are the ones getting all teh tests, not sure I will find much. Hopefully some of this has helped. Good luck and know there is Hope out there and people who are working to cure and find answers to this crazy disease.