Everyone has diverticula. Over the years, especially when one bears down to defecate, straining, it causes the lower intestines to form pockets over time in them and seeds, nuts etc. sometimes lodge in those pockets or folds and become inflamed and/or infected. which causes an infection and can perforate the intestine and leak into the surrounding tissue similar to a ruptured appendix and can be deadly. Usually treated with anti-biotics. Best to look it up as I may not have got it all.Diverticilidus?