Salam Alaikkum,
Mashallah we have many medical students here, I remember 8yrs ago my sister wants me to be a Nurse and I know for sure I cant be a nurse. I am afraid of blood, i dont like medicines (smell) and I vomit blood from scare while watching scary movie (wrong turn to be specific). On top of that, personally hospital will make me feel sad on daily basis because my heart cries out when someone is sick or meet an accident and so on.
But I have to mention that I have great respect & admirations for medical professionals. May Allah bless you all