From reading all your responses, here’s my honest opinion:
Do mathematics. I got a B in Computer Science - Data Structures last semester at a CCC. Even though it was a very bad professor, it does not deter me in the slightest of choosing computer science. You probably won’t get a 4.0 throughout college, it doesnt matter and life goes on. You like mathematics and science, do it. Apply to med school ANYWAY with a math/science degree, but don’t do what’s EASY so you HAVE to go to med school because your parents want you. A math major/computer sci minor would get you into quite a few programming companies if you wanna go that route also.
It’s clear to me you should do what you’re interested in, regardless if you think you’re good at it.