Possibilities: Over training, not enough rest between runs, poor diet, stress, lack of sleep. If do not feel "right" for extended period see your physician for evaluation.
Answered 12/23/2012
5.4k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question