Hi @divinityrose, welcome to Mayo Clinic Connect. I had not heard of hyoid bone syndrome before your post today. I did a quick Internet search only to discover that little is written about it. I found a related syndrome called Hyoid muscle dystonia which was discussed at Mayo Clinic Proceedings here: https://mayoclinic.pure.elsevier.com/en/publications/hyoid-muscle-dystonia-a-distinct-focal-dystonia-syndrome

Am I correct in understanding that you haven't been diagnosed officially with hyoid bone syndrome, but upon your research you discovered that your symptoms match closely with HBS, correct? Now you are looking for a specialist who in knowledgeable about this syndrome. Have you considered consulting neurology and/or ENT at Mayo Clinic? At Mayo Clinic you may benefit from their team approach to diagnosing and treating a patient. Here's a quote from the website about the Mayo Clinic approach:
"Your Mayo Clinic team will be hand-picked according to your unique needs. It will likely include specialists within and across departments to evaluate your condition from fresh perspectives. Plus, your team has access to more than 4,700 Mayo Clinic physicians and scientists on three campuses. If there's a question, alternate ideas and emerging research are just a phone call — or hallway — away. At Mayo Clinic, our approach leads to more answers and more happy endings for patients than anywhere else in the world." (https://www.mayoclinic.org/why-choose-mayo-clinic/what-makes-mayo-clinic-different)

Might be worth exploring.