at least twice a month, when breathing in I may swallow or inhale a pencil point size of saliva or not, i'm not even sure. anyway, (it also happened once or twice while I was sleeping) all of a sudden I can't get no air and I mean none, I end up sucking in as hard as I can and for what seems like forever about 30 seconds later I slowly start to breathe mostly through my nose and only after having to calm myself down a great deal. what's going on, it is the scariest thing I've ever experienced in my life. I am 52 and this has been going on for maybe 3 years but has gotten worse. thank you, steve