Burping is common but 500 times a day is not normal. You should meet a gastroenterologist doctor for opinion. (Gastro Enterologist= superspecialist doctor of diseases of food pipe)(degree- DM, Gastro)
Also high SGPT indicates
liver disease which has multiple causes such as- Viral Hepatitis, Alcoholic hepatitis etc. So doctor will need to test your blood for making diagnosis.
Next Steps
meet Gastro Enterologist
Health Tips
avoid intentionally swallowing air and take adequate antacid treatment.