I've scanned the thread to see if this was posted and didn't see it. I found this interesting article regarding the body's immune responses to decompression sickness. What is of particular interest is how the body will form blood clots.
http://atlanticunderwater.com/index.php?option=com_docman&task=doc_download&gid=9&Itemid=91
I think is might also be relevant for a possible explanation as to what happened to John Moore (Littlejohn)? I am no expert, and also not a tech diver, so yeah, speculation. But the article is interesting, even if most of it is beyond me as far as the medical stuff is concerned.
Your chamber looks like the one in Manado which I got to ride in last April 2008. 3 times. Very bad case of skin bends. One of the most painful things that has ever happened to me.
I read your other post explaining how you got hit. This comment might be best there, oh well, and it is certainly not meant as bashing, but just something I think people need to be reminded of: If you are bent, moving around and cleaning equipment, etc. is the worst thing you can do as the bubbles can rise, move to the brain, lungs, etc. It is imperative to remain flat on your back as much as possible, even during transport/being moved from a boat to ambulance, whatever.
I have done a lot of research the past few months regarding the bends, and PFOs (as I have one, waiting for repair, and desperate to get wet!), and the point about remaining flat was something I really hadn't known (or really remembered) before my research. Hence the reason I would like to mention it here.
I hope you are recovering well.