"Painful bloating" refers to a condition where the stomach or abdomen feels very swollen and uncomfortable, and it causes pain or discomfort. Full definition
Yes, it's true that those same fruits and vegetables contain vital nutrients, but these nutrients can be found elsewhere in foods that don't cause painful bloating. (getthegloss.com)
In people who lack this enzyme, lactose passes into the colon where it feeds bacteria that generate gas and fluid, resulting in painful bloating, cramps and diarrhoea — a condition known as lactose intolerance or malabsorption. (newscientist.com)
The symptoms can vary between fever - like sensations, itching, runny nose, to more severe ones like migraines, pains all over the body, meteorism (severe painful bloating), etc.. (mindbodyandspiritwellbeing.com)