Gastritis can cause pain
in the upper abdomen after eating .Peptic ulcer disease causes upper left quadrant pain
that usually begins 2 hours after a meal. It gets better with over the counter antacids. Stomach flu can cause indigestion and abdominal discomfort. Viral gastroenteritis can lead to nausea, abdominal pain
and diarrhea. The exact location of pain
and other details will help in determining the accurate cause .Take light meals. Avoid spicy fried foods.