There are six electrolytes you should have run: Sodium, potassium, chloride, magnesium, calcium and phosphorus. This site doesn't list magnesium.

http://www.nlm.nih.gov/medlineplus/e...cle/003468.htm

A comprehensive metabolic panel includes such things like kidney and liver function and total protein.

A urinalysis to see if you are having issues there is not a bad idea (some people have protein in their urine).

A cardiologist checks for things like peripheral artery disease, which can cause cramping in legs.

Just go see your primary doc and get checked out!

Annie