Mutiple causes: Could be muscle fatigue, poor circulation. Low back nerve or disc herniation. Pronated or supinated feet (foot structure).
Answered 4/13/2013
5.2k views
A doctor has provided 1 answer
A doctor has provided 1 answer
6 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question