The downside of long holidays

I feel like shit right now. And its only 2 days into this semester.
Well I guess the long breaks makes me rusty, and now, oh well... Damn if I ever gets ill before my exam.
Man yesterday was a little tiring, but it was all ok after some rest. Today, I could hardly make any sense out of what the lecturer's chanting infront. I'm like a walking zombie by now. Erm, wait, does it makes any difference?