Nightshift,
I was very similar to you as a med student. I wanted to do surgery but realized I didn't have enough passion for it to work 60hrs a week and take call for the rest of my career. My GF at the time convinced me EM was for me because of lifestyle. Nights and weekends don't bother me. Also, I liked the thought of being jack of all trades, doing resuscitations and using medical treatments in addition to doing procedures. At the time, it sounded like ER doctors were the only "real doctors." Plus (I'm ashamed to admit this), telling people you're an ER doctor just sounded cool.
It's been 7 years since graduating and there are things I wish I knew:
1) Being jack of all trades is overrated. It sucks to be a smart guy with the answers your whole life only to be relegated to the role of the non-specialist people go to just because they have to. I know people will say that you are the specialist in resuscitations but really, many of these pts had no real chance for long term/meaningful survival and the fact that they made it to the ICU only to die later doesn't make me feel that good. To top it off, you often get second guessed by the ICU folks who consider themselves the real specialists in treating crashing pts.
2) I didn't realize how much I would miss out on by not doing something that provides definitive care more often. I would love to go to work everyday and walk out of the OR to tell a pts family that everything went well and that the pt will get better. Nowadays, I still love going in to sedate a pt, do a procedure and then telling the family or pt that everything went well. However, while doing that I have to worry about moving the meat and who else is crashing in the ED.
Also, nobody remembers the name of the ER doctor that reduced their shoulder, shocked them out of VF, intubated them when they had bad pneumonia, etc. On the other hand, pts always remember the name of the ortho that scoped their knee, cardiologist that rx'd amiodarone, pulmonologist that bronched them and extubated them. I get pts coming in to the ER all the time asking if Dr So and So, who did their hernia surgery 20 years ago, is still practicing.
3) All the other BS regarding press ganey, crazy pts, drug seekers, being dumped on by others, medicolegal risk, etc. You can see these topics on a weekly basis on this forum and so I will not go further.
I disagree with the statement that burnout was a thing of the past. I see it in myself and many others.
I know that #1 and #2 make me sound kind of narcissistic but I think you need to consider them. I used to tell myself that I don't need respect from other doctors or patients. I used to think getting lots of time off to do cool things, stay in shape and spend time with family was all I cared about. They are great, but I do feel like I missed out on certain things professionally by not going into surgery or some other more focused/narrow field.
If I could do it again, I probably would still do EM. In all honesty, I don't like any part of medicine enough to sacrifice my other interests just to work over 50hrs a week. And, for the hrs I work, I make really good money. BUT, having the proper expectations is extremely important and I just hope that people pursuing EM don't have the same unrealistic expectations that I did 7 yrs ago.