Adding to the “me too” thread! I’ve had the same thing happen for 20+ years (43yo now). I actually had a thyroid sonogram today
(2-5-24) and the sonographer said my thyroid looked perfect. I’ve periodically looked online for what could be causing this and until now, I’ve never found anything so thank you OP! I can easily pop mine back in and it may happen a few times a week or once in 6 months. I don’t have any pain when it’s popped out, but I can’t swallow and talking is a little more difficult. I hope someone in this thread will be able to get some answers! I’m following up with my dr in a few days and seeing what our next step is.