If the calf is sore and can’t sleep, consider a variety of possibilities: 1, caused by athletic fatigue, can be caused by sudden strenuous exercise, but also long hours of labor and cause soreness symptoms, you can elevate the affected limb, do a little local hot compress, massage, is conducive to alleviate the symptoms of discomfort. The actual fact is that you can find a lot of people who are not able to get a lot of money for their own personal use. 2, due to the herniated lumbar disc compressing the sciatic nerve and radiating to the legs with pain and discomfort, you need to go to an orthopedic clinic and do a lumbar examination. If there is a problem, you need to carry out physiotherapy and traction treatment for the lumbar area. 3, consider the problem of varicose veins in the lower limbs, you can do vascular ultrasound examination of the lower limbs to clarify, if there is a problem, you can consider surgery.