Hello am new here.

My husband has been having pain in the left down side of hes abdomen and every time he eats the pain start hurting very bad and he try to go to the bathroom but gets really constipated and when he does go to the bathroom theres blood in hes stool with allot of mucus and sometimes even clogs of blood.Last time the pain got very bad to the point where we had to take him to the er they did blood work and check hes rectum and they said it was normal but he was screaming and crying cuz of the pain this has been happening for more than a year now and its just getting wurst hes even lost weight he has a colonoscopy where still waiting for the appointment but i dont no how much longer we could wait what can it be am really worried any suggestion or advise would be helpfull hes 31 by the way.