It’s such a common feeling they made up a new word for it.
“Hangry” is a combination of hungry and angry – as in, when you’re hungry, you’re more likely to get angry or grumpy. It’s a real thing.
A recent article, “The science of ‘hangry’ – how low blood sugar makes you a monster,” cites a study that found “married couples get increasingly angry and mean towards one another” when there’s not enough glucose to fuel the brain.