Imagine you are in an enclosed room with no window or door. Only limited supply of air. Slowly, it feels as if the walls are moving in, further choking you. You try desperately to claw your way through the walls. Soon enough, you fall short of enough oxygen and it feels like your lungs are going to burn through the skin. You don’t know whether to tear your chest apart to let some air in or bang on the walls. All the while, it is closing in further and further until it almost becomes another layer of your skin.
No, you don’t die. This is pain, not science. You are cursed to live in suffocation until you drown in your own misery.
This is what pain feels like.