Hello Good Evening,
This is serious illness as per your description, although hemorrhoids can cause heavy and chronic bleeding
but any other bleeding source also can be found.
So he has to go to a surgeon for hemorrhoids surgery to stop the further loss of any bleeding, moreover he should be gone over a diagnostic Colonoscopy
to search a any other active source of bleeding.
This chronic and heavy bleeding can cause severe anemia
, which itself can cause severe weakness and many other serious symptoms.
So please do not take it lightly, go for proper evaluation and management, if you are not able to afford higher expenses then go to nearest government medical college hospital to avail less expensive investigations, treatment (Blood transfusion
may be needed) and surgery.
Dr. Naresh Jain