For four days I feel like I haven't slept; my body aches, my muscles are tight-I have no energy at all. My joints feel like there is no cartilage in between them and my skin is sort of clammy. In addition, I have what can only be called tunnel vision, it goes along well with the sudden and brief dizzy spells I experience. Lastly, the lympth node below my right ear is swollen so badly that it is noticeable from a distance. What's wrong with me?