eli5 Why does throwing up hurt our bodies and make us feel terrible

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one time whilst throwing up i felt so sick that i passed out, lost my vision for a few seconds and genuinely felt like death. turns out it was just a stomach bug and it went away after a couple days but why does feeling sick hurt so much? what’s actually happening and is it a different feeling for everyone depending on the sickness?

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9 Answers

Anonymous 0 Comments

The purpose of vomiting is getting rid of harmful substances you ingested. Your body does this by forcefully contracting muscles of, in and around your stomach to push the food up.

It’s possible that this contracting kinda overwhelms your blood supply. Your muscles need oxygenated blood to work, and getting rid of contaminants would get priority over your vision. It shouldn’t go further than a bit of blurriness, so maybe check with a doctor.

The pain is just because you’re straining muscles beyond what they’re used to. It’s a muscle ache. People who throw up often (think anorexics or people with gastric disorders) eventually stop feeling pain. The muscles get stronger, the same as any other muscle.

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