I have exactly the same and went to see a physiotherapist. He told me it was a 'swollen disc'. I absorbs moisture and then swells and that's what causes the pain. When standing straight, the moisture is pressed out of the disc and the pain is gone.
Posted By Willy on July 28, 2009 at 09:31:56:
In Reply to: Re: Back pain only after lying down 4-5 hours
posted by Erin Stevens on November 30, 2008 at 11:08:07: