there are three chambers to the lungs and to listen to all of them efficiently-the dr has to put the stethoscope in 4 different places. once on your upper back (near your shoulder blades), once on the sides of your waist, once on your lower back and then in the front at the center of your chest which is close to your heart.
Food allergies and intolerances can cause gas and bloating. But these need to be confirmed by your doctor. Many people self-diagnose these conditions and unnecessarily eliminate healthy dairy and whole grains from their diets. If you suspect you have an allergy or intolerance, see your doctor for tests.
Bloating is sometimes due to the foods a person eats. Mayo Clinic indicates foods from the cabbage family, onions, beans and whole-grain foods are more likely to cause gas and bloating. Sugar alcohols, which provide artificial sweetening, are other likely causes, as are dairy products and fruits.