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.
The Real Culprits. The truth is that in addition to excess gas, there are a number of possible causes of bloating. One of the most common is a group of conditions known as functional gastrointestinal disorders. These disorders alter the way the GI tract works, but many of them have no known cause.