The symptoms of pain all over the body when sleeping: 1. It may be an epidemic cold, such as the body’s immune system is weak when infected with the flu virus, resulting in the body to appear the symptoms of the flu virus and its metabolites stimulation, will appear all over the body aches and pains. It is also accompanied by coughing, coughing phlegm, and sneezing and some other cold symptoms, which need to increase water intake, pay attention to rest, take oral medication to improve symptoms, pay attention to warmth, eat a light diet, and avoid straining. 2. It may be due to excessive exertion or strenuous activity during the day on the first day, and the body’s muscle tissues are in mild damage, which can lead to the formation of local inflammatory lesions and pain. During the time of activity, the blood circulation is faster and the metabolites can be metabolized in a timely and effective manner, while during sleep the blood circulation slows down and the metabolites of inflammatory substances and lactic acid slow down and accumulate, resulting in pain all over the body after waking up. If you get a cold at night, the blood circulation will be slower and more metabolites will be produced and accumulated in your body, so the symptoms of pain all over your body will be more obvious when you sleep.