I agree with you 100%.
I was diagnosed in 2000 with PANDAS. I was better and living life normally after being on antibiotics and anti anxiety meds by 2001 and was thriving till 2005 (I stopped antibiotics in 2002). In late 2005/2006 I became really really depressed which i believe to have been a relapse of the PANDAS. I was in bed all the time and I slept non stop, my anxiety wasn't terrible though. Then I was better, but I don't think I ever felt as good as I did in 2002-2004. In 2007 I got pregnant and had a beautiful baby girl, after she was born my hormones went into overdrive and I was a complete mess. I recently have been feeling worse and worse with my anxiety and have been seeing a Dr and been on Clydamicin. I feel better when I am on the antibiotics but I can't be on them forever, I feel like relapse is definitely possible and may happen to many PANDAS suffers years after the original onset, keep pursuing your Dr's even after you or your child feels better, I wish I had.