Thanks for posting your query.
Do you have abdominal distension/ loss of appetite/ fever along with mentioned symptoms?
Blood in stools is an alarming sign and it should be taken seriously.
Although you have negative history of any type of cancer but still your symptoms suggest for thorough work up.
You should consult with internal medicine specialist/ gastroenterologist.
You should go for colonoscopy
along with complete blood count
You should also go for CT scan abdomen with angiography
, if colonoscopy is normal.
Dr. Mayank Bhargava