The most common symptom of stomach ulcers is pain or a burning sensation in the middle of the abdomen between the chest and the belly button, and it can last for a few minutes to several hours. It is more intense when the stomach is empty. Other symptoms of stomach ulcers include: • Dull pain in the stomach • Avoiding eating because of the pain • Weight loss • Vomiting or nausea • Feeling easily full • Bloating • Acid reflux or burping • Heartburn • Pain that can improve when you drink, eat or take antacids • Dark, tarry stools • Vomit that looks like coffee grounds or it’s bloody • Anaemia