Have you ever, ever felt like this?

Feeling down or sick can be the worst, not feeling like doing anything except stay in bed and watching your guilty pleasure (mine, it's the OC at the moment, can not get enough!). This weekend has been one of those. 

I've been feeling down, out of it. Like everything I need to get done by the end of the year is drowning me already. I know I have heaps of time for all these things (over 6 months) but I still can't find myself being happy/excited about these prospects.