Metabolic process of food produces gas or flatus that will come out of body with the process of intestinal peristalsis
.It is a natural physiological activity & happens to every individuals.
Selection of food & time of taking food had changes amout
of gas production during Metabolic process.
Just take food before 3 hours of your bed 7 slow walking after taking food avoid taking food that causes gas like potatto,Cereals etc will help more.Thanks