Hi Every Few Months I Feel Like I Can't Get

Hi every few months I feel like I can't get a deep breath in and trying to yawn to try and find some relief for a few seconds but then it just comes back. My lungs feel fine it's just as If I can't get enough air in with a deep breath past my trachea.

My doctors have done all sorts of tests and x rays and apparently everything is fine.

But this randomly happens every couple of months and lasts for weeks/months and then randomly goes when I wake up one day.

What do you think this could be? I feel like I'm going to die from suffocation all the time