Sore legs and dizziness are usually a phenomenon caused by the presence of cardiovascular system diseases in patients, such as heart failure, atherosclerosis, myocarditis, myocardial infarction, and many other causes. Patients may experience reduced cardiac output resulting in problems with body circulation and impaired peripheral circulation, which leads to dizziness and sore legs. It may also be due to nerve damage, such as lumbar damage, lumbar disc herniation, and compression of the spinal cord leading to impaired nerve conduction in the lower extremities, and the patient may experience numbness. Dizziness in the head is usually due to infarction or spasm of blood vessels in the brain, resulting in poor blood circulation, and it is important to have a timely checkup to find the cause and then treat it early to avoid missing the best treatment time.