Mine mostly comes in blocks. It is pretty mild but some times it gets pretty bad. By blocks I mean, I can't make any sound, I can't release any air and I can't breathe. It's like a tightening in my chest and throat. I'm just there with my mouth agape until I get through it or just substitute the word with a similar word. But most of the time it is pretty mild. It improves when I am doing something exciting like playing games, exercise or just drinking itself. My nerves make it a little worse but not tremendously so.