> I'm not convinced anything is wrong with me ...
I learned how to tell when something was physically wrong from my parents and, as I grew older, a few friends. A scrape on my arm was fine, a low fever was fine, but falling out of a tree was a trip to the hospital for inspection. But, I never learned how to differentiate between mental issues the same way. As long as I was doing the things that other people were doing, and acting like others were acting, I was fine. Problems can linger, slowly degrading your life, until you wake up one day and notice that things are not good and haven't been good for a while. My main point was that you can't always tell, by yourself, if everything is fine. Sometimes you need another informed opinion, and people shouldn't fear medical professionals because of what they can do.
> my experience with the medical profession, 'to a hammer, everything looks like a nail'
I also don't blindly accept my auto mechanic's suggestions, or advice from people on the internet, without some additional personal research and a second opinion. You are paying them to find things that they think are wrong, because you think there might be something wrong. And, if you agree with that opinion, to help you fix it using their chosen methodology. If you don't like their hammer, find a different doctor. But, if they all recommend the same thing, reconsider your own opinion.
You may not have a problem now, but at least learn how to recognize and deal with it for when you do. Chronic problems, when left unchecked, can slowly destroy your life, and your future.