Thanks for asking the query,
Bad breath and bleeding gums
are associated with your drinking habit.
Bleeding gums occur due to vitamin deficiencies, improper oral hygiene
, plague and calculus deposition, consult to a dentist
get a checkup done , go for symptomatic treatment of complete mouth scaling and polishing.
Brush teeth twice with a soft bristle toothbrush.
Maintain a good oral hygiene.
Take multivitamin tablets.
Black stools indicates bleeding in the small intestine
consult to Gasteroenterologist.
Hope this helps out.