Hi Jelena, I’m not sure where in Texas you are but we just recently started seeing Dr. Bain in Frisco. Her practice is called Healthy Kids Pediatrics and she came highly recommended to us for that exact reason as well.
You can try Resilience Naturopathic in CA (they are 100% virtual). They specialize in PANS/PANDAS kids only however they do a free consult to see if they can help. If they cannot, they can recommend other practitioners who can help.