I can’t see that area clearly enough in your images to comment on any possible compression…
The glossopharyngeal nerve does have a branch which goes to the carotid sinus, so does go to the level of your hyoid bone processes. The vagus nerve runs down the length of the neck too. And the hypoglossal nerve does affect tongue function too, yes.
Re Dr Dewan, who never got back to you, this might be helpful from @YcrowY & @Isaiah_40_31
Hyoid Bone Syndrome - NEW DOCTORS TO CONSIDER - General - Living with Eagle
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