I'm so sorry to hear of your battles. My son was diagnosed with PANDAS last December and also with Lyme's Disease in January. He's been on antibiotics since the PANDAS dx and is now on a battery of supplements as well. The ILADS doctor we see is the only one in our area. My only issue with him is that he charges $400/hr. and requires payment up front. Phone calls are charged by the minute. Fortunately, we've been able to get the insurance company to reimburse some of the cost, but the financial burden has been huge.
Regarding your recent bout after coming off antibiotics, this may just be a coincidence. My son has been cycling through good weeks and bad weeks and he has been on azithromycin and rifampin regularly for months now (since Jan.) Dr. G. has him taking several supplements to help clean his system of toxins and boost neurological healing. The PANDAS doctor, whom I recommend HIGHLY, is Dr. K. (I've had to edit this post, as apparently, I should not be giving Dr.'s names). She is a wonderful caring human being, though there isn't enough of her to go around. She started us on a specific regimen for the antibiotics which is supposed to improve absorption and reduce toxicity. Our day starts at 5:30 am with a round of Strep-free Probiotics, including Saccharomyces (a beneficial yeast)and a supplement called Lumbrokinase. This helps break down the biofilm in the gut to improve absorption. 30 min. later he gets the azithromycin and rifampin (a special dose made into a capsule by a compounding pharmacy here). 1 hr. later he gets a charcoal pill to absorb the whole mess and reduce toxicity. This is followed 30 min. later by breakfast which includes Lymplus (improves lymphatic drainage), Glutathiol (Antioxidant supplement), Vitamin D, Vitamin C, Magnesium, a multivitamin, and more probiotics. He also take Itires drops (improves lymphatic drainage)3x a day and melatonin at dinner to help with sleep. Our evening repeats the morning ritual for his second dose of antibiotics of the day and we are lucky to get to bed by 10:30 pm. I also give him Methylcobalomine shots 3x/week. Needless to say we are exhausted. The only thing that keeps me going is the "Good Weeks" cycle. My son will be cheerful and loving again. His fine motor skills return and he will draw and write and play at building things. The noise sensitivity disappears as well as his stammering and repetitive actions. It's a bliss I look forward to and hopefully, will see again soon, as we are currently in a "Bad" cycle.
I can only say I understand and hope your situation improves. If you can afford it, I do recommend both our Dr.s and think they are on the right track. I just wish there was an end in sight. Right now, I'm not sure how long we will have to endure this torture. I can only imagine how my 7 year old son feels when he says, "Why can't I just be normal again? Why can't I just be the way I was?"