People with coeliac disease often have bloating and pain in their abdominal (stomach) area, diarrhoea (watery stools) or steatorrhea (fat in their stools). These symptoms can lead to flatulence. Their stomachs also start to hurt and they might suffer from joint pains, seizures, rashes, fatigue, slowness in growth and puberty, loss in weight, loss of bone density and fertility issues.