Omg. FINALLY I've found others who have experienced the same thing. I've had this happen occasionally for probably 15 years. For the longest time it would happen and then I'd swallow again and immediately it would feel like it popped back into place. But about 5 years ago, that started not working anymore and it wouldn't just pop back, instead it was slowly start to feel better over the course of about 5-7 days. But it sounds like the same "random" triggers sometimes just yawing if I'm laying a specific way or looking down a specific way, but I cant pinpoint anything specific. Its very sporadic with me, for a while it was almost once every 6 months, but recently it's been over a year since it's happened last. I tried explaining to a Doctor once and they were just like idk sounds like a muscle since it doesn't impact my breathing or eating except for making it super painful. I'm just happy to have found others who experience this too (sadly)