This is not medical advice. In fact playing with these areas possibly could hurt your self. I am just wondering do I rein myself in anytime I am anxious or nervous.
On the bit
I know nuthin about horses.
The hyolingual complex is connected to the skull by two muscles that remind me of reins the stylohyoid and stlyoglossus.There is a third the stylopharengeous it may be involved in what I feel also
My sense is that I am tighter on the left when I try to play with where I think these muscles are in my throat and mouth, When swallowing the hyoid bone elevates to help close the airway.
Never heard of this syndrome before