Should I choose business or medicine?

I am having a little bit of a hard time deciding on what major to choose. I am an upcoming senior and yes I know I don't HAVE to have a decision made right now but I would like an idea of at least what area I should be going into. I make decent grades(all A's) and I'm ready to go ahead and send in early acceptance applications in September and I would like to have an idea of what I'll want to be doing before I turn those in. I am an extremely caring person and I love being able to walk around and be on my feet a lot during the day which are two reasons I figured medicine(more specifically Pediatric Physician's Assistant)would be a good choice for me. But both my parents are business people and my older sister is even now getting her masters in business so they have all made a very good influence on me in that area now too. I see how well provided we are as a family and I know how great my parents loveee their jobs and I just want that same happiness as well in the future. And I want to be sure I'm going to be able to afford all my expenses and all on my own (no man's money necessary llol) and I know PA's make good money also soooo.. I'm kinda caught between these two degrees to choose from.. any ideas or advice from anyone? :) Thanks!