So I've held this job for several years, which was a major source of clinical hours and patient experience. I referenced this as a most meaningful on my AMCAS, and put the reference information of my boss at the time. I've also received a LOR from someone who I work closely with. During the ED application process, I got a promotion, which I mentioned in an update letter before the interview. Anyway, I got accepted and now, post-acceptance, realize this job is actually killing me, making me miserable, stressed out, etc.
What I want to do is call my boss, explain that I don't think I'm suited to for the position, and ask for a demotion to my original position while staying with the company. However, if I do this I have some fears about him/her "retaliating" when contacted as a reference for this activity. I'm also unsure how the school would take this and my worst fear is having my acceptance rescinded.
I have no clue what to do, so opinions are very much appreciated