Have you ever?

Have you ever been so tired and worn out that you could not wait to lay your head down to take rest? I am at the state right now. Lack of sleep throughout the nite and forced to come in to work today due to unforseen circumstances has caused me to be in very irritable state. Anything and everything seems to be wrong rite now. I crave for my bed and pillow so that I can rest my mind and body.