I was diagnosed with IBS by a gastroenterologist in 2008. After worsening, uncontrollable symptoms (not even Immodium could slow the diarrhea) & weight loss I was diagnosed in 2012 with collagenous colitis. Anyone else have both diagnoses coexisting? Have you found effective treatment or even better, prevention? Prednisone or Budesonide used to lessen the colitis symptoms but are less effective (& have side effects). Heather's tummy fiber & peppermint capsules help. Any suggestions welcome.