I don't usually post on Spinal so had trouble finding what I was looking for.

Actually the subforum in TOS is for Repetitive Strain Injury... I'll post the link below for you. There are lots of ideas in there regarding posture. I'm sorry I can't help you more. Hopefully some of the members from Spinal will be able to help you out better. take care.

http://neurotalk.psychcentral.com/thread22626.html

p.s. just on a personal note I think you need to ask your doctor more questions.
They've not really told you very much by the sound of it.