currently pregnant and I've gastric issues since first trimester on and off. I did see the doctor once when I first had it and she prescribed me some antacid medication. Subsequently, I took gaviscon occasionally when it came back and my gynae mention that gaviscon is safe for preggers.
if you're pregnant then best to see doctor or you can try to drink ginger tea. if you've delivered and doing your confinement, it is normal and your confinement lady/masseur should be able to help you get rid of the wind in your body/stomach.