Coughing and choking

This isn’t a daily occurrence but it’s been happening ONCE every 2-3 months for the past 2 years, I wake up coughing barely being able to breathe, and when I say coughing I mean coughing to the point where I’m about to throw up , if anyone one knows what the fuck this is PLEASE TELL ME. It doesn’t happen frequently but whenever it does happen I genuinely feel like I’m gonna die because I cannot breathe