Bowen is more oriented toward muscular issues. I wonder what impact it could have on the PCS symptoms you mention. It has no standard protocol since Bowen never documented his technique. I would think there would be a difference between practitioners. I would categorize it as a therapy that needs to be considered a financial risk. If one has the money to try it without causing a financial hardship, it may be a worthwhile risk.
Here is a thread where Bowen technique was discussed years ago.
http://neurotalk.psychcentral.com/sh...owen+technique