Thanks for posting your query,
is the most probable cause of stomach pain after intake of certain food items. This can happen if you are allergic to certain food items.
is another possible cause of stomach pain after eating.
Severe upper abdominal pain
experienced instantly after eating a heavy meal or pain experienced six to twelve hours after a heavy meal can be caused due to pancreatitis
Make sure that you consult a doctor if the problem is experienced repeatedly. Remember that stomach pain after intake of food must not be ignored. If you develop such problems, do get yourself examined by a reputed doctor.
I hope this information has been both informative and helpful