3rd time getting diverticulitis in 6 months. this time every time i start eating solid food from a liquid diet i get abdominal pain after 2 days. what could be the cause. eating a very low residue bland diet of about 4 different things?

You may still have some residual inflammation from the diverticulitis. If this persists, you should see your GI doctor to see what else can be done to relieve the inflammation so you can eat more solid food as well as a larger variety of foods. You may need to see a dietician to provide you information on a diet you will likely tolerate. Good luck!