It’s like that feeling you get when you know you are going to throw up, but you don’t know when. You try to convince yourself that the nausea will pass. You distract yourself. You wonder if maybe your body’s just being hypersensitive. You are desperate to avoid the extreme unpleasantness that comes with vomiting up your insides. And yet, you know that you’re inevitably going to have to endure it if you want some relief. Once it’s over, your stomach will eventually settle. But it’s so scary. And so uncomfortable. You hate it. And there’s nothing you can do to stop it.