Why So Sentimental?

This is my 3rd month here so I'm quite used to things here but lately I've been thinking,"what am doing here?",Studying for the future,to become a Doctor?If so, why then?Well when other students here are asked about the reason they want to be a doctor, they can answer without any problem. Some of them would say that they want to do so because they want to save lives, Some would say its their interest, some would also say that they are following in someone's footstep but there also those who simply want the honor and the respect that comes with the title 'Doctor'.I on the other hand have not a clue as to why I want to be a doctor.I don't really want fame and fortune, I mean it will be nice to have those but its fine with me if I can't have them as long as I can keep myself and maybe enjoy a little.If I were to say that I want to be a doctor because I want to save lives, it may not be true either because I doubt I am such a noble person.If I say I want to be a doctor because of interest, I think I will probably be telling only part of the truth because although I like Biology but the urge to become a doctor never even crossed my mind before coming here so can anyone out there tell me why am I here? What am I thinking huh? Of course no one can tell me that so I guess I just have to find out by myself one step at a time.If you have read this I would like to thank you for sparring your time because it gives me some sense of relieve that I can't explain or even understand for that matter but thank you anyway.