What is wrong when i bend over and I feel nausa and then vomit?

Feeling nausea and vomiting when bending over can be caused by several factors, including gastrointestinal issues like acid reflux or gastroparesis, which can be exacerbated by changes in position. It may also indicate inner ear problems or vestibular disorders affecting balance and motion. If this is a recurring issue, it's important to consult a healthcare professional for a proper diagnosis and treatment.