All doctors are trained by the same entity. Why would a second opinion be any different? Doctors are a waste of time and money. I don't have insurance. I figured out how to help myself. That is ultimately what everyone is going to have to do, if they want to get well, or feel better- really - without simply deadening the pain.
Doctors are in the business of managing pain in an assembly line fashion and ushering people to death's door. They are not in the business of curing illness. Their lobbyists even made it illegal for the herbalists, who could cure people, to say so. If doctors really wanted people to get well and stay well, they would teach them the two main causes of disease are toxemia and malnutrition. They would prescribe healthy food and sell customized nutritional supplements. They would hold classes on how to purify the blood.
Doctors are useful for a few things- shots of morphine when you die, stitches when you have a deep cut, to reset your bones and put you in traction when you are in an accident, and for face lifts. The rest of them are death promoting dope peddlers. They tell you that parasites are ubiquitous and everybody has them and they won't do anything about them until it is too late to do anything but make you comfortable while you die.
And then they won't give you enough to put you out of misery, only enough to prolong it. It is insanity.