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.
As you start exercising, you may experience pain, like leg cramps, alongside the health benefits. According to the Mayo Clinic, the following is what causes leg cramps: -Dehydration -Muscle overuse -Muscle strain Repeating a particular motion for a long period or standing in one place too long may also lead to cramping. The best thing that you can do to avoid leg cramps is to stay hydrated by drinking water. You can also drink sport drinks, which will replace lost electrolytes. Leg cramps from muscle overuse or strain should be treated through regular stretching exercises.