Generally, if your hbv dna is very low, your ALT you should normal. If your ALT is elevated, it can be due to other
causes such as fatty liver. I copy some information regarding burning sensation in stomach:
http://www.md-health.com/Burning-Sensation-In-Stomach.html
Burning Sensation in Stomach
A burning sensation in the stomach can be a sign of digestive problems like gastritis, GERD, food allergies or intolerances, or emotional stress.