Mrs D - Thank you very much for your info and yes I do understand it's likely limitations. As you say we would have heard more about it if it was a substantial help to PN sufferers. On the other hand one never knows!! It may help some and not others. Due to the problems with my arteries I will ask my consultant if he agrees to me taking them when I see him on Monday next.
If I do try them I will of course post the results here.

Sue - Thank you for your concerns re my gallstones. They still give me trouble on a regular but not too severe basis. Due to my other problems I am very reluctant to have surgery unless I have no option. My feet pains are through the roof these days and I am finding day to day life very difficult that's why I am willing to try anything!! I do hope you are feeling better and are having less problems.

Thank you both again

Tony