It could be functional dyspepsia or could herald the onset of reflux disease. Two things, stop alcohol if you have any and get regular exercise for at least an hour every morning get an ultrasound done to rule out
Hepatobiliary diseases. Start a PP I like pantocid 40 once a day in the morning Empty stomach.
Next Steps
Ultrasound whole abdomen, regular exercise, stop alcohol if he has any
Health Tips
Lose weight if overweight