What causes gastrointestinal bleeding and how serious is it really?
https://newsnetwork.mayoclinic.org/discussion/gastrointestinal-bleeding-is-a-symptom-of-digestive-tract-disorder/
WebOct 12, 2020 · Vomiting blood, which might be red or might be dark brown and resemble coffee grounds in texture; Black, tarry stool; Rectal bleeding, usually in or with stool; With occult bleeding, you might have: Lightheadedness; Difficulty breathing; Fainting; Chest pain; Abdominal pain; Symptoms of shock
DA: 15 PA: 59 MOZ Rank: 93