Just Had A Scary Thing Happened While I Was Sleeping!

Just had a scary thing happened while I was sleeping! I woke choking and gasping for air! Is it possible to have like a sinus plug loosen and then have trouble swallowing it while laying down! It was like I had the wind knocked out of me and I was gasping for a number of seconds! Once I sat up in bed and I swallowed it felt different in the back of my throat! I could definitely breathe better!! In the last few months I have had a really bad drooling problem when I sleep!