Symptoms of Gastritis

The list of signs and symptoms mentioned in various sources for Gastritis includes the 24 symptoms listed below:
Nausea
Vomiting
Stomach upset
Pain
Belching
Abdominal bloating
Feeling of fullness
Burning feeling in stomach
Gastrointestinal bleeding
Vomiting
Blood in vomit
Blood in stool
Black stool
Loss of appetite
Stomach cramping
Fever
Lethargy
Foul taste in mouth
Diarrhea
Belching
Chest pain
Symptoms of chronic erosive gastritis:
Indigestion
Upper abdominal pain

Note that Gastritis symptoms usually refers to various symptoms known to a patient, but the phrase Gastritis signs may refer to those signs only noticable by a doctor:

source:www.wrongdiagnosis.com