3 years back I hav 3-4 times loose stools ith mucus  at morning ,one time i hav black semi solid   stools for continuous 3 days. and heavy gastric  So I do colonoscopy  biopsy, endoscopy ,usg abdomen  blod tests are normal.doctor  told IBS , prescribe vsl #3,gastric tablet 15 days and sarotena 10 mg for 6 months.my flatulence, loose stool problem gastric problem all r solved.now from august 22 I hav semi solid stool at 1st time in morning,after half an hour I hav loose stool  some times little mucus in it and gas passing through it. 7 months I hav 7-8times flatulence passing per day.some times  bad odour gas pasing, when eating frequently or eating groundnut . from 6 months I hv no abdominal pain but from march 23 I hav dul pain uper abdomenbelow the rib cage  occurs after every 2 hour of eating.DR gave IZRA 40 for 10 days daily 2 times.my pain is gone.after 2 days I hav heavy yellow mucus with litle drop blood in semi solid stol rexigut 400 mg  taken problem solved.it is due to IBS?