I am 25 and some years ago I remember that randomly I would feel something in my throat "pop" out of place as it seemed, it was extremely painful and it would always immediately pop back. In January "it" "popped" again but did not correct itself. I ended up in the ER and they gave me muscle relaxers and pain meds thinking maybe it was a throat muscle spasm. The ENT and the neurologist had no different answers even though muscle spasm does not quite fit.
It feels like something near my throat right below my lower jaw pops out of place and is pushing against my esophagus which made it extremely painful each time I swallowed. It has happened 3 or more times since then but will pop back after 5 to 10 seconds. I have NO answers and the doctors I've seen have NO idea. -Throat pain in SoCal