Yep, I know what you're talking about. Sometimes it feels like my throat
freezes as well and I feel like I can't swallow
. Then I panic. When I first started with the panic, I remember feeling something at the back of my throat. It bothered me so much that I took a flashlight to my throat and realized it was my large uvula!
Try not to focus on your throat or swallowing. The more you focus on it, the more aware of it you become and thus starts the cycle. Easier said, than done, I know.