Lethargy

I've been feeling lethargic lately. I honestly don't know why. All I want to do is lie down and sleep and watch tv. Sigh. I did some Shaun T.'s the other day lest I gain more weight. I don't know if it has anything to do with my stress level at work or it's just plain "katamaran". There are a lot of things for me to do so it's definitely not boredom. Have you ever felt that way? Not wanting to do anything? Not even think? I'm so pathetic.