I've heard of people getting into medical school and then dropping out because it is not for them. I am discovering more and more physicians who said if given the choice, they would not choose this profession again. A lot of doctors are unhappy with their jobs.
I find this very scary! I shudder to think that I might invest so much time, money, and hard work only to find that I chose a profession which makes me miserable.
How does one know for sure becoming a doctor is the right decision?
My personal view..no one is truly sure.
But isn't that like anything in life? You enter a relationship hoping it works out, but there's no guarantees, you move to a new place or pick a school hoping you'll like it, but there's no guarantees.
Life is uncertain, best thing you can do is try to gather as much information as you can and make the most educated decision you can make, the rest is a leap of faith like anything else in life.
Shadow, volunteer, talk to doctors (and not just the miserable ones, but the happy ones too, they do exist), and think about what you would like to do and who you want to be in the future. If it seems like medicine will lead you to that, and you're willing to make some of the sacrifices, then go for it. There's always going to be a feeling of uncertainty, the trick is to reduce the uncertainty as much as you can before you make the decision.
I don't think this is an uncommon feeling, whether you're pre-med, a med student, a resident or even an attending. I felt uncertainty going in and I still do. On some really stressful days I wanted to quit and do something else. I also had a few rare good days with a nice patient or classmate, where I feel like this is where I fit and I may really get some fulfillment out of this. Other days, I'm just indifferent and going through the motions. I still don't know if I made the right choice to pursue medicine, only time will really tell, but I have some idea of what I might want to do in the future, and I am trying with the hopes that what I'm doing now can lead to that. No guarantees, but I'm trying.