DIGESTIVE RELATED PROBLEM. Is bothering.

I have been suffering from digestive related problem from 2 years. My age is 23 and male patient weight 40 kgs. MY SYMPTOMS are...1 - burning and hot sensation in belly not in chest and throat just after 30 mins from eating food and then continue but no stomach pain only burning and hot sense .it seems to me that my belly is full of hot vapour. 2- every times after drinking of water and other liquids air belching with previously eaten food scent come out but only scent with air not any food particle or sour taste in mouth 3- about 15 to 20 times very bad smelling flatuence in a day (4)- stool is not brown in colour it is greenish yellow.I go latrine two times daily. I took omez-d , pan-40 .thes medicine help to relieve only burning sense but not completely little burning sense till present and other symptoms persists BUT MY APPETITE IS GOOD which generally not present in digestive related problem. Pls give some medicine for curing burning and hot sense after eating which is bothering.