The title of this thread should be: "Anyone suddenly realize they actually have to become a doctor." Med school isn't that hard, its the being a doctor that sucks.
Of course medicine has pros and cons.
However, THAT is how one needs to look at it - medicine. Not medical school. You are about to enter a new phase of life that will change who you are and how you live, from here on out.
The problem with premeds perspective (and why its difficult to truly see whats going to happen) is that there is a view that its just "4 more years." I hear it all the time. But its not.
Honestly, medical school isn't that hard.
1st year is a review of undergrad for a lot of people. Its awesome because you have your own schedule for one of the last times in life, you get to deepen your knowledge and be SUPER excited that you're going to be a doctor. However, by the end of first year most people are shackled to medicine. Most people could not survive the payments of a 50k loan without finishing and being a physician.
2nd year is undergrad on steroids and the pain of studying for Step 1 12 hrs/day for a month. Its awesome because pathology is incredible, and you'll have all sorts of new diseases you never knew you had
3rd year is the worst, working 50-80 hr weeks (longer if you go to school on the east coast) and learning a whole new skill of working in the hospital. Possibly getting yelled at by residents, attendings and nurses. But third year is awesome because you can try new specialties, make connections with patients and learn some of the basics of clinical medicine.
4th year you pick your specialty, apply to residency and chill through lots of easy electives. Its just outright awesome - no downside here
Then there is residency, and the rest of your career.
No one says its evil or terrible, its honestly not that hard. However, its a shock in how much it will change your life. Predominantly starting 3rd year. You will look at society differently, feel worse about humanity, feel frustrated with our healthcare system.
In your personal life you will do the best you can, but old connections will break off because you will find you have very little in common with people outside of medicine, even family relationships will be difficult to maintain. If you aren't already in a relationship its very difficult to find one and maintain it, if you do you may relocated for residency likely breaking it off. Many of the single women in my class have no prospects and freak out about never getting married or having kids.
You do all this while watching your friends from high school buy houses, have kids, go on vacations (maybe barely getting by the skin of their teeth but still...), etc. etc. etc. and you wonder if it was really worth it.
Sure you get to be a physician, some people will respect you for that - most won't. You get to spend 40-120 hours every week working for the rest of your life. 40 hrs is rare. You will make decent money but will pay down 200k of debt and won't really have tons of money to throw around until several years after residency (meanwhile you earned below average for a college graduate for 3-7 years in residency). Patients won't listen to you, they will be self-destructive, some will hit you. You will see everything thats wrong with society and never be able to do anything about it. You will watch nice people die too young and have to tell their families. You will see the frighteningly crass attitude that permeates medicine and will quickly find yourself participating.
Just remember its not 4 more years. When you hit your third year you are going to become a different person. You may or may not like that person. Then you will continue to be that person for the rest of your life.
The pros of the overall field: recession resistant, decent pay, very cool job, get to work with tons of people both colleagues and patients, quite a bit of variety to choose from within the career.
Its not that medicine is bad, but a lot of people hit a wall where they wonder if it was worth it - and its usually not - too much life cost for too little benefit, there are other options out there. Don't get me wrong, I love my life - I am in a relationship am fortunate to see my family often and can't wait to be an EM doc. However, if I were magically transported back 5 years ago...no way in hell I would do it again.