It’s sudden. It doesn’t happen gradually, it’s nothing and then it’s all encompassing, it’s zero, then it’s a billion, you’re breathing and then you’re choking.
But you do feel it creeping, that familiar feeling that you had forgotten about. It’s bubbling somewhere beneath the surface, and as soon as you realise, all of your senses switch off in a joint effort to combat it. You can’t hear anything around you, you can’t hear anyone talking to you because you’re using all your energy just begging for that feeling to go away before it erupts and forces you to experience it again. People around you will scream at you because you’re not listening to them but it’s because you’re too busy trying to fight it off before it comes.
But of course, life never happens the way we want it to and suddenly you can’t breathe.