Med schools get plenty of applications from engineering/math/physics/CS majors. That alone won’t make you unique enough to stand out.
Can you use your experiences as a platform to answer the “Why medicine? Why me?”–sure but remember it’s a starting place not a be all-end all.
And I have to say, if you are applying to BA/MD programs–not having any shadowing and not any having clinical volunteering will doom your application. Med school adcomms are looking for evidence that you understand the life you’re signing up for and that you have had sufficient first hand experience to be able to say that I am Ok with dealing with the chronically ill, the injured, the dying, the elderly demented, the mentally ill, and their families.
Second hand experience that you may had observed thru your family’s experiences is not enough. Experience as patient (or family member of a patient ) is NOT the same as clinical experience.