please seek out some kind of alternative option before allowing them to remove your bowels. that will handicap you for life!!! try the makers diet, i am sure someone in england can help you with it, a nutritionis or naturopath. people have recovered from your condition. please try, what do you have to lose???
also this - raw cabbage juice has healed all kinds of stomach and intestinal problems, it is very easy on the system and tastes very mild, why don't you try some?
you may also want to post this same message in the ask curezone forum, it is very active and lots of people there give great advice, here it is.