Where I live, there has been an interview for all potential medical students, to check their suitability, for as long as that medical school has existed. I think that it was the first medical school in Australia to have that interview practice.
As for symptoms of metastatic cancer, I just had enlarged lymph nodes in my neck. When I was doing self defence classes, one of the assistants spotted them and advised me to see my G.P.
As for the other symptoms, well, I have not had them.
Everyone is an individual. Experience is the greatest teacher.
