post op diet out of track

hi there, I'm new to this community. I wanted to be a part of it since recently I've been dealing this difficult problem. I had my RNY gastric bypass surgery over two years ago. since then I've reached my weight goal and doing pretty well with my new eating system. however recently I find it difficult to keep myself away from food containing white flour, such as bagels or simple bread. quitting sugar and fat was not an issue, but this relapse in consuming wheat flour is worrying me a lot. has anyone experienced a similar situation? I was wondering if anyone could give me some advise on this. thank you very much.