It probably won’t be a problem that you have your GED as long as you show the desire to learn and stay in college. I think you’ll be fine.

Medical school will take longer because you may have to go 6+ years to get your doctorate degree.

I’m 32 and I’m still trying to finish up my bachelor’s degree. I started college at age 19, but then I got married, bought a house and did all the adult things at such an early age that school is going a little slow for me. I’ve been going off and on over the years, but never give up! I’m actually almost done. But it’s hard when you’re having to take 1 class a semester because of a full-time job and stuff. My job now pays so well that I don’t have to finish college, but I want that degree for my own personal accomplishment.