Since I was diagnose with anxiety I have stopped breathing for 10 to 20 seconds four different times.One time my face went numb I rubbed it and the numbness went away but I couldn't breath. It was terrifying. The last time it happened I had bad head pressure like someone on squeezing my head really hard I started fading away from the world and then stopped breathing. has this happened to anyone else? does this even sound like anxiety?