I've just had a look at your diary and it looks pretty good. The only thing I would say is that perhaps you're actually not eating enough. You really shouldn't be below 1200 a day and, as far as I remember, you've not hit that since Monday. I always keep a protein shake (check the carbs though - mine is low carb) handy to top up on days when I physically can't eat any more meat.

The oat thing is possibly a bit of a problem as well. It is fairly fundamental on the Dukan plan. Can you not get hold of it online? It keeps pretty well if you could order several packs. You shouldn't really be having the crackers, although at least they are pretty low carb. Failing being able to get the oatbran can you get oat crackers or similar instead? It would seem like a better option to me - again watch the carb count on them though.