Gastic troubles. Completely digested.

I am having gastic troubles in my stomach since more than 2 years. I have checked with various doctors they said its because my disorder of food habits and for junk food. But in my right side intestine is weak, they said. Sometimes my right aide of stomach tend to be very heated. I have had hernia operation in my left side before 6 years. Also have some lymphnode in right side of my thigh .. doctor said its not a big issue .. have also done sonography twice but no major issue was found. Everytime i find my right side stomach a very much heavy. Also sometimes i find my chest heavy and my nose closed. And also because of that i find my right leg numb sometimes (may be its scaitica) .. whatever i eat is not completely digested. I get small burps every minute. Though i eat it turns into acidity.. have tried many acidity medicines but still didnt find any concrete solution. Sometimes also whole right side including chest have acidity feeling. Also tried laxitives but didnt help permanently