What happens if you swallow a lot of water at once like you were drowning?

Swallowing a large amount of water quickly, similar to what might happen in drowning, can lead to water intoxication or dilution of electrolytes in the body, which can be dangerous. This can cause symptoms like confusion, headache, nausea, and in severe cases, seizures or coma. Additionally, if water enters the lungs, it can lead to aspiration pneumonia or other respiratory issues. If someone is in distress after swallowing a lot of water, medical attention should be sought immediately.