TopKnife
As I said a good doctor is brilliant and worthwhile person to have on side. In the UK you are given access to a GP surgery and rarely assigned an actual GP unless in very affluent areas. This means it's very pot luck if you get someone competent. Not a matter of smart enough to pick a good physician, more rich enough to live somewhere expensive where you get a regular GP.
I am always careful not to give full medical advice, personal experience, some guidance and open acknowledgement that none of what I say may be useful is my style. The closest I got to medical advice was find a doctor by recommendation or use a chiropractor, someone who will specialise in sorting out backs.
Using the mechanic anecdote is a good comparison, many of them can be incompetent too and yes I have encountered a few dangerously so. Strangely enough when you complain about one of them something seems to get done, when I reported a GP for dangerous negligence, they were simply moved to a different surgery. It appears they are well protected over here, hopefully you have this a lot better in the US.
If you think I am simply down on the profession consider the GP I formally complained about was sat in a cosy office with time slots and breaks, very low pressure, still too incompetent to either pull up patient notes on a computer of have them brought in paper form, yet prescribed potentially dangerous medication that could have killed my wife despite her telling him her medical history. When I was into dangerous sports we generally had on site medics and every one of us had signed a waiver to allow them to make on the spot decisions without fear of being sued, because we knew they would often be dealing with emergencies. They got things wrong on occasion, generally under extreme pressure dealing with several cases at once or someone literally about to die or reviving someone who has died, seeing that in real life is terrifying. When one of them sent me from unconscious into a coma with a simple error he apologised when he saw me next and I was totally OK with it. I understood what he'd done, why and that he and others had done everything to make me stable while repairing major damage I had caused myself. With excellence like that under the most extreme conditions even after an error I am not willing to accept lazy incompetence with lives on the line in the safest environment.
I am guessing medicine is your profession or at least passion based on the name, I do reserve the right to be wrong of course. If I am right it would be interesting to know if you have ever reported a colleague for acting dangerously or at least pulled them on it. In my profession where lives are very rarely on the line we often correct mistakes from others and makes sure they know what they have done. Extreme cases do result in disciplinary and failing to correct others is frowned upon severely, as is refusing to accept responsibility for an error or trying to hide from it. Maybe this is why I am so unforgiving of low quality medical staff.
I hope you stick around and are as equally passionate about fitness as the rest of us. Much as anything else I appreciate being challenged and corrected, as someone who loves learning I know how much can be gained by being corrected.
Not heard the term bro science, but if it is what I expect, basically bad advice handed around as fact, I have encountered a lot of it and most is garbage. The fitness industry is full of it so yes I agree totally in never taking anyone's word for it, including mine of course. There is also the joy of new research which makes liars of the most well-read. I studied nutrition, kinesiology, anatomy, various styles of training etc. for a number of years, but all of this was a number of years ago meaning only a few weeks ago I was proven blatantly wrong by stating something we knew for sure 10 or 15 years ago and have been found out to be way off since. The single most dangerously stupid thing I can think of anyone, including a doctor, doing is assuming they are always right.