Acidity is normal condition.It has to do with the lifestyle.Eat less and eat 4 times a day.Avoid eating spicy food.Have ginger juice,it relieves symptoms.Avoid caffeine,tea.
Don't go to bed just after dinner.After dinner go for a walk and after 3 hours of dinner one must go to bed for sleep.If symptoms don't resolve after following these guidelines then visit doctor.Stop smoking and drinking alcohol if you smoke or drink.
I am not a doctor.So you can visit the doctor right away.Doctor can examine you better.
What do you mean by acidity?