Depends on cause: There are several, possible explanations. It could be hypoglycemia, anxiety with hyperventilation, vertigo, cardiac dysrhythmia, syncope, vasovagal event, etc. Without more detail i can't give you more specific information.
Answered 3/3/2013
5.3k views
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
3 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