What illness causes whole-body weakness and soreness in the limbs?
Generalized weakness and soreness in the limbs may be caused by overexertion, exposure to cold, hypokalemia, viral myositis, or rheumatic arthritis. Symptoms can be improved through nutritional supplementation, rest, staying warm, and medical treatment. If symptoms persist or are accompanied by fever or muscle stiffness, prompt medical attention is necessary.
1. Overexertion: After prolonged physical or mental labor, lactic acid accumulates in muscles and the body becomes exhausted, leading to generalized weakness and limb soreness. It is recommended to stop working, rest in bed, and gently massage the limb muscles to promote lactic acid metabolism.
2. Exposure to cold: When the body is invaded by wind and cold, viral stimulation triggers an inflammatory response, causing generalized weakness and limb soreness, often accompanied by nasal congestion and runny nose. It is advised to wear more clothing for warmth, drink plenty of warm water, and ensure adequate sleep.

3. Hypokalemia: Insufficient dietary intake or excessive loss of potassium leads to a deficiency of potassium ions in the body, reducing muscle excitability and resulting in generalized weakness, limb soreness, and numbness. It is recommended to take medications such as potassium chloride sustained-release tablets, potassium magnesium aspartate tablets, or potassium chloride injection under medical supervision to alleviate symptoms.
4. Viral myositis: Viral infection invades muscle tissue, causing inflammation, muscle edema, and pain, leading to generalized weakness and limb soreness that worsens with activity. It is recommended to use medications such as ribavirin granules, vitamin C tablets, and inosine tablets under medical guidance to improve symptoms.
5. Rheumatic arthritis: Infection with group A beta-hemolytic streptococcus triggers joint inflammation affecting the limbs, causing joint pain and swelling along with generalized weakness. It is recommended to use medications such as enteric-coated aspirin tablets, ibuprofen sustained-release capsules, and penicillin V potassium tablets under medical supervision to relieve symptoms.
Daily care should include maintaining regular作息 (sleep-wake cycles), avoiding overexertion, eating a balanced diet rich in potassium-containing foods, staying warm to prevent cold exposure, and engaging in moderate exercise to strengthen overall health.