HI and welcome to the Chiari forum.
U pose a very good question, and ur thoughts on it make sense...I wish I had answers as my TC is pulling more lately as well.
I had the chiari PFD surgery in May of '09....still have symptoms as I was told I still have chiari....and my TC and a bulging disk ...so, I still have issues, but am sooooo much better than b4.
I was also dx'd with EDS prior to surgery...I had no idea it was a condition that caused me to bruise easy and heal slowly until that point.
Plus when I was younger I never would have considered myself flexible, the thought of even trying many of the positions many do with this much flexibility made me think it would hurt, so I never would consider trying.
Plans r being formulated for me to see a dr that specializes in EDS and I hope to learn more at that time.
We do have a EDS group here on MedHelp....
http://www.medhelp.org/forums/Ehlers-Danlos-Syndrome/show/417?camp=msc
Glad to have one more here to share with , but not happy we share many of the same discomforts.
"selma"