Does anyone know?

Becca💙💙👨‍👩‍👦‍👦 • Mama of 2 amazing boys
Why my baby can pass gas so easily during the day but at night he cries and grunts and seems SO uncomfortable for hours because he can't seem to get his farts out?? And sometimes it doesn't matter what I try, nothing helps! Why does his gas seem so much harder to pass in the evening??