I have a bachelors of Science degree in Clinical Laboratory Science with a 3.6 cumulative GPA. I have worked in the hospital for 2 years now. I would love to become an infectious disease doctor. I have taken the MCAT and received a score of 21J the first time and a 22O the second time (after taking a Princeton Review class). I do not want to take it again, but I don't know if I am competitive enough to get in. I do a lot of volunteer work and have been since I got out of school as well. What do you think?