Diverticulitis is a very common condition in the west and almost 50% population above the age of 50 suffers from this. Most of the patients are asympotamatic but it may cause symptoms like your`s quite often. To confirm th ediagnosis, you may undergo a sigmoidoscopy or a colonoscopy or a barium enema studies. The treatment is generally what yoyu have received unless and until there are complications when more agressive treatment is required. You will heal gradually. Take soft diet, an antispasmodic like dicyclomine when required and take rest. You may gradually start moving around and gradually increase your level of exercise. To prevent recurrent attacks of diverticulitis, you should take high fibre diet .to avoid constipation but only one`s you are healed of the present acute attack.