Nothing Serious: It may be due to stress, muscle fatigue, anxiety if it persists than you should have it checked.
Answered 3/26/2013
5.4k views
A doctor has provided 1 answer
7 doctors weighed in across 4 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