请问各位大师_AOS,EAD,Medical School

各位大师，

My statuses: a Chinese-Canadian and a senior U.S.college student, I-485 pending, AOS (F1 after using AP). I want to apply for U.S. medical school.

My questions: 1) Can I apply for U.S. medical school? And how about after I have used EAD? 2) Are there limits to non-immigration students to enter U.S. medical school? 3) Is it much more difficult for non-immigrator than US citizen and green card holder to enter U.S. medical school ?

Thanks,

Naomama