Hi it might be due to gastritis. Gastritis is an inflammation of the protective lining of the stomach. Acute gastritis involves sudden, severe inflammation. Chronic gastritis involves long-term inflammation that can last for years if it’s left untreated Certain conditions and activities may increase your risk for developing gastritis 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 recommened are high-fiber foods such as apples, oatmeal, broccoli, carrots, and beans. low-fat foods such as fish, chicken, and turkey breast. foods with low acidity, or are more alkaline, like vegetables. drinks that are not carbonated. Thank you take care.