increased rate of autoimmune comorbidities as evidenced by the finding of several types of neural receptor autoantibody A previous study reported that autoantibodies to muscarinic AChRs may play an important role in POTS Multiple autoantibody types occur in COVID-related, autonomic disorders, suggesting the presence of autoimmune Herein, we review the association of anti-GPCR autoantibodies with disorders of the autonomic nervous