Heartburn doesn’t actually involve the heart, at all, but is a digestive issue in which stomach acid comes into contact with your esophagus. It feels like a stinging or burning sensation in your chest or near the bottom of your throat. It is more common in pregnancy because the hormones in your body relax the ring of muscle that usually keeps the acid in your stomach, and at the same time your growing tummy crowds your stomach and causes the acid to slosh upward. Certain foods will make the heartburn worse, so you should pay attention to what you’ve eaten and avoid those foods that you notice give you heartburn. You should also keep your meals smaller by eating more frequently, and avoid laying down after a meal. If your heartburn becomes frequent, consider adding some raw pineapple or digestive enzymes to your meals.