If you have diverticulitis, that is an infection and you would need to be on antibiotics. Diverticulosis is the uninfected form of this disease, which is when pockets form on the inside of the intestine. They look like bubbles on a colonoscopy. Did this doctor say it's diverticulitis not "osis"? "Itis" is very painful with fever, etc., and patients sometimes need hospitalization. It is caused when the pockets become infected for a number of various reasons. Occasionally, they can rupture and cause bleeding. If it's "osis" (uninfected), you need to ahere to a diet that will prevent foods from being hung up on the pockets and causing irritation and sometimes infection. For me, that means avoiding all raw fruits and vegetables (anything hard, especially carrots), anything with seeds (tomatoes, cucumbers, zuchini), and seeds themselves (poppy, sesame, etc.). Some writings have come out lately saying the seeds don't matter in diverticulosis, but for me that is not true. I have terrific pain and messed up bowels if I don't adhere to this diet. It's also important that you do not allow yourself to become constipated, as the straining will aggravate these pockets. Some people use fiber supplements to help. Hope this info helps and that you are soon feeling better.