Hi again,
Yes this has been a major issue for me since finishing the treatments. From what I have been told by my Docs, in my case anyway probably adhesions in the bowel from the radiation. I have been told many times to eat a diet of very low fibre, basically I need to live on white bread and white rice and cake! No salad, fruit, vegies or cereal, the things the I eat everyday. I can not do it which is probably why I suffer with the pains frequently.
The oxygen therapy is basically the same thing a diver with the bends would have, you sit in the chamber and breathe high levels of oxygen everyday for 30 minutes for about a month. I know with my beautiful friend, (passed away on the 6th of October 09 - love you Alli,) she found this helped her almost immediately. I would find it hard to do right now, simply because I still have a little one at home.
Here is a link that explains what the treatment is used for and how effective it is;
http://www.uhms.org/ResourceLibrary/Indications/DelayedRadiationInjury/tabid/281/Default.aspx
you might have to copy and paste into your browser. Im not sure if it is an Aussie site but the explanations are the same. It might be worth a try!
The link does work...even though it looks like it has been cut off, just click and it should take you there.