Question

why we occur vomiting by bad smell?​

Answer 1

Explanation:

Hyperosmia tends to be a complication of another underlying condition. However, changes to the sense of smell may trigger an increase in headaches and nausea and vomiting.

Answer 2

Answer: It's a particular digestive juice called butyl acid that gives vomit that distinctive smell. And something else trivial but gross: when you vomit, you don't just bring up your stomach contents - about thirty seconds before it happens, the contents of your lower intestine move back into the stomach. Sorry if that's too much information!