I once went to a doctor for a really bad cough i had. the doctor i went to was not my regular doctor. he diagnosed me with asthma, but i had never had any symptoms in my entire life of asthma. i went and got a second, third, and even a fourth opinion. the rest said that they dont know what the other doctor was talking about. In reality i had bronchitis due to smoking. it cleared up with some antibiotics and quitting smoking. It seemed to me that the doctor who gave me the false diagnosis was attempting to get me on a medication regularly so that the hospital was making more money. this illustrates how crooked the system can be.