She may have a gastric ulcer which is causing burning sensation and also anaemia. Consult a gastroenterologist and get an endoscopy done.

Hi.... Avoid foods and drinks that trigger heartburn. Everyone has specific triggers. Common triggers such as fatty or fried foods, tomato sauce, alcohol, chocolate, mint, garlic, onion, and caffeine may make heartburn worse. Avoid foods you know will trigger your heartburn. Eat smaller meals. Avoid overeating by eating smaller meals.