I had a bad case of it. Bad. 7 out of 8 of the SIG-E-CAPS symptoms, and I lived in dangerous proximity to lots of alcohol.
Was really close to calling it quits; transferring or doing something else (FM/IM/carpentry/philosophy/whatever). Intern year is long, a limited amount of it is spent in the ED (which is where you busted your ass so hard to get in the first place).
Remember: austerity breeds excellence.
Your second year is infinitely better.
Stay the course.
Pretty close to my experiene.
I had a block around this time when I was really checked out.
I had an overnight shift on a cold Saturday night.
Right before I went in I was watching The Shawshank Redemption.
The end when he went to Mexico seemed like the ideal solution.
On my way driving to work, I really thought about just driving away and never coming back.
Not just a passing thought, I mean I was really considering it.
This time last year I was really sure I wasn't going to continue in EM.
If the depression kicked in any earlier, I probably would have switched specialties.
It was just too late to get into the match again.
There were a bunch of different factors that I couldn't stand.
Fast forward to midway in second year.
I'm glad I stuck it out.
There are still things that suck about EM and residency.
I've learned how to deal with some of these things.
I have at least some clue about how to approach most things I see.
Procedures are so much easier.
Almost everyone goes through this at some point.
Try to find a trusted source to speak with.
It will get better.
Feel free to post questions or PM if I can help.