By Anne Asher, About.com
Updated: April 18, 2008
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
What is a Symptom?Symptoms of Arthritis of the NeckSymptoms of a Pinched Nerve
Signs and Symptoms ComparedBack Pain SymptomsDiagnosing Back Pain
Are your symptoms merely irritating, or could they be a sign of allergies? More >
The best way to treat a headache is to prevent it. Learn how. More >
©2009 About.com, a part of The New York Times Company.
All rights reserved.