I am having a burning sensation in my stomach(appears suddenly) as well as mild nausea.i am unable to eat more than 3-4 spoons of anything.what to do?

Burning in Stomach: It does not have to be something serious. It could be an irritation of your stomach lining, called gastritis, which may be from something you ate, a medication, or a recent illness. However, you should consult a local physician who might recommend a course of over the counter antacids like Pepcid complete, zantac, (ranitidine) of Prilosec otc.