You know that feeling when you get random leg cramps and you can't move your leg cause it locks up. Picture that in the upper chest and back of the throat, and during all that, your mind is fully aware and is trying to find a way to stop it. Or You know that feeling when you wake in the middle of the night and you can't move at all cause of sleep paralysis and your mind if kinda freaking out. Picture that happening at random times while you talk.