If the brain's blood supply is decreased too much, the person may pass out (syncope). Symptoms may worsen when changing position from lying down or sitting, to standing up. In addition to feeling dizzy, associated symptoms may include: 1  Sweating. 2  Weakness. 3  Nausea and vomiting. 4  Shortness of breath. 5  Chest pain.
Although most muscle cramps are harmless, some may be related to an underlying medical condition, such as: 1  Inadequate blood supply. Narrowing of the arteries that deliver blood to your legs (arteriosclerosis of the extremities) can produce cramp-like pain in your legs and feet while you're exercising. 2  Nerve compression.
Cramps. A principle cause of leg pain is a cramp or muscle spasm, often known as a charley horse. Muscle fatigue, dehydration, and some medicationsâsuch as diuretics and statinsâcan all lead to leg cramps.eg pain refers to pain or discomfort anywhere in the leg. It can range from a dull ache to an intense stabbing sensation. There are many causes of leg pain. However, only some of these are medically serious.