Hi mockingbird22:
I would recommend you to really talk to your professor about helping in the lab. In my own experience the professors at my university are pretty nice and friendly. As long as your CV looks legit and you sound enthusiastic about volunteering, I am pretty sure your chances are good.
It would also be pretty awesome to start reading and understanding about medical journals, because you probably will need the knowledge in med school and basically you pay for it in your tuition. My friends and I are actually starting this project called HBRnews; we read some medical journals and write about their medical applications. It's kind of new, but we are also recruiting more people.
Hope these information help!! 🙂