Hello, Thnx to contact us. I understand your concern. If I am your doctor I advice you that since you have ulcers, diverticulitis & hemorrhoids all of which are bleeding condition in your intestines it is necessary for you to take treatment till you get all this corrected. your hemoglobin is good right now so at this moment you can start with the oral iron therapy. I will be happy to answer more of your concerns, kindly know me, Wish you a very good health at health care magic. Dr. Arun Tank. Infectious Disease.