Yeh I'm with you Nirav... I recently met someone that studied medicine, before doing CS in one year at UCL, going on to work at the Star Wars initiative, banks, the NHS spine and eventually Google.
His advice: Medicine is a great general career; it shows many good qualities, has good job prospects and is useful when relatives get older - but it is not the final destination of your life if you don't want it to be. While you're still young, dabble in as many things as you can that interest you, do some reading up, get involved etc. and go from there
I've come to realise that if I can't get out of bed to study something I don't enjoy, how am I going to do it every day? Might as well get a job doing something you love - many will say this is rare, but I think it's easy with some brains and the right attitude
ps. Funny to note the most passionate about medicine are the ones that haven't even started the course yet...
pps. Having said this, medicine being a vocational subject, we both may come to love the work even if we aren't that enthralled by the subject.