I can't believe I finally found people to whom this also happens!! I've had it happen a few times a year for the past 3ish years. I'm currently 38 and I just had my longest episode and was terrified. For me, swallowing, talking, and moving my head is excruciatingly painful. With this longer episode, I could feel how the back of my tongue also hurt. Crying does too! Normally I can recreate the trigger position to "undo" it (laying on my right side, turning my head left, and swallowing). But this time lasted almost an hour!

From all of your information and frantic hyperfocused searches, I found that it's likely a hyoid dislocation. I was able to push my thumb up into the soft spot under my chin and slowly pull toward the painful side. Relief came fast!! I still have residual pain when swallowing, but I think it's just from how long it lasted.