This isn't a weight problem, but it is a physician not diagnosing correctly.
I have asthma, and for several years as a kid I had a nasty cough. The doctor said "Here, take these cough drops" basically and nothing worked. Nothing. I really had a problem. I was even coughing in my sleep!
Finally he admitted it: I have asthma! Why didn't he say it? Apparently, with the insurance I had, it would cost him to admit I had a serious illness. So he didn't want to lose the money.
Some of these people really are only in it for the money.
Oh yes, good luck to you!