Hello I had gone through your question very diligently and I can understand your concern this could be due to GERD (acid reflux from stomach to oesophagus),nausea suggest this other possibility is Fatty liver owing to faulty food habits and drinking You need not to worry much about this It s reversible in early stage which can be corrected with complete abstinence of alcohol and smoking and avoiding fatty fried and junk food if it persists even after that than.please consult a gastroenterologist for an endoscopy You may need anti acidity medicines like PPI group as pantoprazole and antacids Exercise regularly brisk walking or jogging and aerobics Reduce your weight and try to keep it within normal range If you can upload your complete medical history like your weight and height, since hoe long you are drinking and how much? I will be able to guide you more accurately waiting for your response thanks for using our services wish you good health