Will I Be At A Disadvantage?

Hello!
So throughout high school (I am a senior now), I thought I want to double-major in history and political science as an undergraduate, and then earn a PhD in political science and/or go to law school, with the eventual goal of becoming an professor of politics or law and later entering politics as a legislator. As I took more and more classes in these subjects, I started to doubt my interest in political science and the realism of my plans. After taking a cross-registered history/political science class at UW-Madison (under my school’s dual enrollment program) on Africa, I got interested in Global/Public Health, and after reading and researching some more, I started thinking about going to medical school, becoming a physician, and perhaps getting an advanced degree in Public Health or Immunology and Infectious Disease. Ideally, I would end up working for the CDC or the WHO, or something like that.
Will I be at a disadvantage in pre-med courses if I didn’t take a lot of extra science courses in high school? I took Biology, Chemistry, (both at my old school, which didn’t offer honors or AP classes) and Math Physics (honors) and I am going to be taking AP Environmental Science and Anatomy & Physiology this coming semester. I am also taking AP Calculus AB this semester and AP Calculus BC next semester.

Also, is it common for people to become interested in medicine at my point in life? It seems most people who want to go to medical school have always done so and then, in college, decide they no longer want to do that.
Thanks for reading!

You won’t be at a great disadvantage, just gotta study a bit harder yout 1st year or so.

People become interested in medicine WHILE IN college so no, ur fine.