I think on paper, extracurriculars are not that important. However, I found that extracurriculars and the experiences I had with them were REALLY helpful during the interviews. My interviewers asked me a lot of open-ended questions such as, "name a time when you were faced with a situation that made you uncomfortable and how did you deal with it?" The fact that I was able to give a good example that I had experienced in a health care setting seemed to satisfy them and helped carry the conversation a bit.
As far as LOR's go, I also don't think they matter much. Every time I talked to someone at a school about admission criteria they valued, they usually listed off different categories of GPA's (pre-req, math/sci, last 60 hours, etc) and maybe an after thought about reaching a GRE minimum. I'm also shocked you didn't get any interviews, GMA2013.