Hi. I Want To Ask. I've Been Feeling Abdominal Discomfort

Hi. I want to ask. I've been feeling abdominal discomfort and very tired before defecation. Usually I will accidentally fall asleep for hours even if I'm not even sleepy but because I felt very tired. Also, after defecation I will be tired. In the past also, I had bleeding in stools because I ate my vit C before breakfast,that may cause irritation to my bowel. Now, when I ate something that is very sour in taste, I will get the bleeding. Is this something that I should be concerned?