My diverticulosis didn't have symptoms until the pocket(s) became infected. The main symptom was pain that continued until I couldn't stand up straight or sit down. The pain is in the area where the infection is, usually left lower pelvis. It can radiate to other areas such as the back and thighs. Because it is in the colon and digestion causes movement there, the pain can seem constant or it can come and go. Bowel movements can be painful, but afterwards you can experience relief. You can have other sytoms that indicate you have an infection (fever, body aches, chills, etc.) As long as there are no complications (abcess, rupture) your body can fight the infection or you have to take antibiotics.