Hi thanks for your query. it might be due to gastritis. Gastritis is an inflammation of the protective lining of the stomach. Acute gastritis involves sudden, severe inflammation. extreme alcohol consumption routine use of nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen and aspirin cocaine use tobacco use stress Gatritis can be reduced by antacids and probiotics foods recommended are highfiber foods such as apples, oatmeal, broccoli, carrots, and beans. lowfat foods such as fish, chicken, and turkey breast. foods with low acidity drinks that are not carbonated. Thank you.