Thanks for your query.
From your history it seem your pain in upper right abdomen and burning increases after eating so you are probably trying to avoid food.This is a sign of gastritis
that is inflammation of stomach lining due to acidity.Drinking cold
milk will help reduce the burning.
You can take over the counter medicine like Digene
gel for relief and if do not feel better please consult a doctor and get medicine prescribed.He may prescribe you a proton pump
inhibitor group medicine and you shall be fine.