Soreness and weakness may need to be considered in conjunction with other conditions, usually including the following: 1, usually do not exercise, suddenly after running may feel sore; 2, when a high fever, also appear all over the body muscle pain, joint pain, if it is in the winter and spring, may have to consider whether suffering from the flu; 3, no high fever symptoms, there are obvious muscle soreness, may have to consider whether suffering from other diseases , such as the infectious disease hepatitis, may also present with extreme weakness. Therefore, in the absence of exercise, if there is muscle weakness and joint pain, especially if the symptoms are not relieved in 2-3 days, you need to seek medical attention to clarify the diagnosis.