Hi,
Thanks for asking.
Based on your query, my opinion is as follows.
1. Decreased
hemoglobin has led to weakness and
tiredness.
2. Bleeding in stomach and
esophagus is leading to dark tarry stools. Bleeding is also seen due to hemorrhoids. Both have led to decreased hemoglobin
3. Upper GI
endoscopy is necessary for evaluation. Stopping of bleeding and nutritional supplements are necessary.
Hope it helps.
Any further queries, happy to help again.