Hi alankar,
do you feel like you're getting burnt out? This happened to me when I was getting burnt out. A day or two of lazing in your PJs and doing nothing but watch TV really helped me. I went back into full gear after that, and you have no idea how refreshed I felt.
On another note--I am more worried about your determination for medical school. Your dream and determination should be such that even if they cut off your hands and legs, you would dream about practising medicine. There are going to be worse trials you will face, this is just like an INFO 101 course

But I know how you feel, because I have been there myself. I suggest that when you're down, do something inspirational.....for me, watching ER, reading a book about medicine, or anything like that helped me. I imagined myself being a doctor, and realized how much it means to me. Perhaps it may help you.
"Bring the fruits of the future into the present, and let that drive you to attain what you want."
PM me if you need some help.
Tweetie