I would go to a doctor, but lost insurance and many other expenses. Any idea what would cause my entire body, almost as if it is the skin or whatever covers the muscle, tissue? It is a soreness to the touch all over, plus I wake up stiff often neck/back pain. I am tired and weak. I do have a poor diet, not very nutritious, but whatever I have like soda, crackers, cottage cheese, no meat and not much exercise due to depression feelings. What causes all over soreness?