Do Corn, Nuts And Seeds Increase The Risk Of Diverticulitis?

Question : I am a 47 year old female. I am very healthy and physically active. I have always had IBS with occasional bouts of painful diarrhea usually brought on by stress. A couple of years ago I had a particularly bad episode that caused very bloody stools, vomiting and problems with bowel control for a couple of days. I was on a liquid diet for a week and it took two weeks for me to really be able to leave the house as normal. My doctor suspected food poisoning (just prior I had eaten an egg roll from a restaurant that I actually commented at the time tasted rotten) or diverticulitis. She gave me meds and originally ordered a CT scan but eventually cancelled it. Although I still think I had food poisoning, since the stool sample came back good she had concluded I have diverticulitis. I have since been very careful not to eat corn, nuts and seeds...all of which I really like and regularly ate. I know the research is conflicting on if that is necessary. If I do indeed have diverticulitis, is there a benefit to me avoiding these foods. And if there is do things with small seeds like strawberries, cherry tomatoes and blueberries pose a risk as well? (I know I need to get a CT scan to see for sure, but just assuming my doc is right...should I continue to avoid ALL foods with seeds?) Thanks!