I don't know if this helps: Sometimes my tongue feels like it's swelling in my mouth to the point I can't swallow and it feels it's obtructing my airway. Those are the times when there's stress I'm not paying attention to, manifesting itsself in physical way, most normally when I'm going through a peroid with little sleep.

Strange foot note - when I was 7 I had Scarlet Fever. It made me feel like my body was swelling and hot, the deflating and cold, back to back. So uncomfortable!

I hope you find relief! Try to make sure you're well rested.
Hugs,
Tiana