"Severe colic" refers to a strong and painful discomfort in the abdomen, often felt by babies or horses. It causes intense crying or distress due to digestive problems, which can be caused by gas or certain medical conditions. Full definition
There is also a «real» medicine that has proven effects on colic, but since it also has adverse side effects it is usually only given to children with particularly severe colic. (easybabylife.com)
I have been at my wits end due to severe colic in my newborn who won't sleep through the night and crying all over the time. (tall-mom.com)
No wonder babies have such severe colic and gas - their bellies hurt from that stuff. (babycenter.com)