I have abdominal bloating and loose stools everyday for over 4month; what are the differences between ibs and chronic colitis?

See MD if chronic: many causes chronic diarrhea/bloat- many treatable/reversible so wud seek MD after discontinue milk/milk products, artificial sugar and sodas& caffeine for couple weeks as these are common culprits. red flags for urgent attention: blood, fever. weight loss, anemia. Pain relieved w BM is major distinction of IBS from chronic diarrhea, and "colitis" generally reserved for ulcerative colitis/Crohn's