Bad day?

Today it was rather a bad day for me. Everything seems to stop evolving around me and I lost touch in almost everything. I've lost my energy to do anything, all I want to do is to sleep and let the day just pass on by me. However, this is not the way it should be. I know somehow this will lead me to a very unproductive and a waste of my day. But yet, no matter how hard I try, the energy of mine still not coming back. I just feel like a lazy Sunday doing nothing, thinking of nothing, not eating, and let the day just pass on by me. Is this really wrong?