Ibs is a funtional gastrointestinal disorder chracterized by some pain/cramping, altered bowel
habits in the absence of specific/unique organic pathology/disease.
Other symptoms common to ibs include bloating, gasiness, frequent/urge to have bm, early satiety, dyspepsia symptoms etc...
Often = nuisances, but can be debilitating at times..
If u r concerned, consult doc..